20 Best 20mm Spanner Socket [2024]

Are you looking for the best 20mm spanner socket? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 20mm spanner socket.

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# Preview Product
1 Poweka 20mm 24mm Clutch Removal Tool Lock Nut Remover for Motorcycle,4-Pin Spanner Socket Wrench for... Poweka 20mm 24mm Clutch Removal Tool Lock Nut Remover for Motorcycle,4-Pin Spanner Socket Wrench...
2 2 pcs 20mm 24mm Lock Nut Removal Tool Clutch Remover 4-Pin Spanner Socket Wrench for Honda... 2 pcs 20mm 24mm Lock Nut Removal Tool Clutch Remover 4-Pin Spanner Socket Wrench for Honda...
3 20mm 24mm Lock Nut Remover Clutch Removal Tool Compatible with ATC 110 125 ATC 90 CA 200 CB 200... 20mm 24mm Lock Nut Remover Clutch Removal Tool Compatible with ATC 110 125 ATC 90 CA 200 CB 200...
4 20mm 24mm Clutch Hub Lock Nut Tool Spanner Socker Wrench Compatible for Crf 600rr 450r 250l Pit 4... 20mm 24mm Clutch Hub Lock Nut Tool Spanner Socker Wrench Compatible for Crf 600rr 450r 250l Pit 4...
5 Performance Tool - Clutch Hub Spanner Socket (W83012) Performance Tool - Clutch Hub Spanner Socket (W83012)
6 Lock Nut Wrench Clutch Lock Nut Removal Tool 20mm 24mm Clutch Lock Nut Spanner Socket for... Lock Nut Wrench Clutch Lock Nut Removal Tool 20mm 24mm Clutch Lock Nut Spanner Socket for...
7 Motorcycle 20mm 24mm Lock Nut Removal Tool Clutch Remover 4-Pin Spanner Socket Wrench fits for Honda... Motorcycle 20mm 24mm Lock Nut Removal Tool Clutch Remover 4-Pin Spanner Socket Wrench fits for...
8 19-21mm Scaffold Spanner Ratcheting Socket Wrench Flat Satin Cr-v Ratchet Podger Tool 19-21mm Scaffold Spanner Ratcheting Socket Wrench Flat Satin Cr-v Ratchet Podger Tool
9 2-in-1 Lock Nut Wrench Clutch Lock Nut Tool, 20mm/24mm clutch lock nut spanner socket for Crf 600rr... 2-in-1 Lock Nut Wrench Clutch Lock Nut Tool, 20mm/24mm clutch lock nut spanner socket for Crf...
10 Honda Type 20mm ID, 25mm OD / 24mm ID, 30mm OD Castle Nut Engine Motor Mount Lock Nut 4 pin Spanner... Honda Type 20mm ID, 25mm OD / 24mm ID, 30mm OD Castle Nut Engine Motor Mount Lock Nut 4 pin...
11 20mm 24mm Clutch Lock Nut Tool, Clutch Lock Nut Spanner Socket for Crf 600rr 450r 250l 20mm 24mm Clutch Lock Nut Tool, Clutch Lock Nut Spanner Socket for Crf 600rr 450r 250l
12 HIFROM Clutch Hub Remove Lock Nut Tool Spanner Socket Wrench Replacement for 2003 2002 2004 2005... HIFROM Clutch Hub Remove Lock Nut Tool Spanner Socket Wrench Replacement for 2003 2002 2004 2005...
13 24mm 20mm Bipolar Clutch Tool Wrench Lock Nut Spanner for HONDA ATC 110 125 ATC 90 CA 200 CB 200... 24mm 20mm Bipolar Clutch Tool Wrench Lock Nut Spanner for HONDA ATC 110 125 ATC 90 CA 200 CB 200...
14 24mm 20mm Clutch Tool Wrench Lock Nut Spanner for ATC 110 ATC 125 ATC 90 CA 200 CB 200 24mm 20mm Clutch Tool Wrench Lock Nut Spanner for ATC 110 ATC 125 ATC 90 CA 200 CB 200
15 Powerbuilt 648473 Spindle Nut Socket Black, 4-Lug, 2-3/8' Outer Powerbuilt 648473 Spindle Nut Socket Black, 4-Lug, 2-3/8" Outer
16 Powerbuilt 648636 5 pc Spindle Nut Socket Kit , Black Powerbuilt 648636 5 pc Spindle Nut Socket Kit , Black
17 DURATECH Midget Wrench Set, Mini Combination Wrench Set, Metric & SAE, 20-Piece, 4-11mm & 5/32'' to... DURATECH Midget Wrench Set, Mini Combination Wrench Set, Metric & SAE, 20-Piece, 4-11mm & 5/32''...
18 DURATECH Super-Thin Open End Wrench Set, Metric, 8-Piece, Including 5.5, 7, 8, 9, 10, 11, 12, 13,... DURATECH Super-Thin Open End Wrench Set, Metric, 8-Piece, Including 5.5, 7, 8, 9, 10, 11, 12, 13,...
19 Starter Clutch Lock Spanner Removal Tool Nut Socket for Scooter GY6 125cc 150cc ATV Moped Starter Clutch Lock Spanner Removal Tool Nut Socket for Scooter GY6 125cc 150cc ATV Moped
20 EPAuto 45 Pieces 3/8' Drive Socket Set with 72-Tooth Pear Head Ratchet EPAuto 45 Pieces 3/8" Drive Socket Set with 72-Tooth Pear Head Ratchet
Bestseller No. 1
Poweka 20mm 24mm Clutch Removal Tool Lock Nut Remover for Motorcycle,4-Pin Spanner Socket Wrench for...
  • Fit for : CRF50, XR200 1980-1984, XR200R 1981-1994, XR250L 1991-1994, XR250R 1986-1994, CL, CT, S, L, XL, SL models, Z50, XR50, ATC70, ATC90, C70,...
  • Replace special tool: # 07716-0020100, 07VMA-MBB0100-101; Removes Locknut: 90231-028-000, 90231-200-010
  • SIZE: 24mm inside diameter on one side( 30mm OD); 20mm on another side (25mm OD)
  • The clutch lock nut spanner is made of solid steel material, sturdy construction, durable in using
  • 4-pin socket spanner tool ,this is no-original aftermarket parts.
Bestseller No. 2
2 pcs 20mm 24mm Lock Nut Removal Tool Clutch Remover 4-Pin Spanner Socket Wrench for Honda...
  • Replaces special tool: # 07716-0020100, 07VMA-MBB0100-101; Removes Locknut: 90231-028-000, 90231-200-010
  • Fitment: CRF50, XR200 1980-1984, XR200R 1981-1994, XR250L 1991-1994, XR250R 1986-1994, CL, CT, S, L, XL, SL models, Z50, XR50, ATC70, ATC90, C70,...
  • The clutch lock nut spanner is made of solid steel material, sturdy construction, durable in using
  • SIZE: 0.90inch (24mm) inside diameter on one side(1.2-inch / 30mm OD); 0.8-inch (20mm) on another side (1-inch / 25mm OD)
  • Package includes 2PCS Removal Tool, please check it
Bestseller No. 3
20mm 24mm Lock Nut Remover Clutch Removal Tool Compatible with ATC 110 125 ATC 90 CA 200 CB 200...
  • Compatible with Combo Gl 1200 1984 1985 1986 ,Replace special tool: # 07716-0020100, 07vma-mbb0100-101,Removes locknut: 90231-0231-028-000,...
  • Compatible with HODA ATC 110 125 ATC 90 CA 200 CB 200 Crf 600rr 450r 250l Bike Taotao Roketa SSR ATV Dirt Bike
  • Fit for 14mm clutch locknut on crf50, xr200 1980-1984, xr200r 1984-1994, xr250l 1991-1994, xr250r 1986-1994, cl, ct, sl & xl models. Crf50, z50, xr50,...
  • 4-pin socket spanner tool
  • This is non-original aftermarket parts.
SaleBestseller No. 4
20mm 24mm Clutch Hub Lock Nut Tool Spanner Socker Wrench Compatible for Crf 600rr 450r 250l Pit 4...
  • GOOD COMPATIBILITY: 24mm spanner socket fits for 50cc-125cc horizontal engine ATV Dirt Bike and Go Kart
  • SIZE INFORMATION: Small End Inner Diameter: 20mm / 0.79", Large End Inner Diameter: 24mm / 0.94"
  • WELL EQUIPPED: 24mm spanner socket is a 4-pin socket spanner tool, each end has 4 pegs.
  • NCIE REPLACEMENT: 24mm spanner socket can be a direct replacement, a special and perfect replace tool.
  • GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. In terms of any...
Bestseller No. 5
Performance Tool - Clutch Hub Spanner Socket (W83012)
  • Removes many different four pin lock nuts on Honda powered Motorcycles ATV's and Tractors, Convenient 20mm and 24mm sizes on one 1/2 in. drive socket.
  • Heat treated steel construction for dependability and long life, 20mm removes the Counter Balancer Nut, Clutch Hub Nut, Crank Shaft Nut, and Oil...
  • 24mm remove the Oil Filter Rotor Lock Nut, and Clutch Hub Lock Nut.
  • CRF50, XR200, XR200R, XR250L, XR250R, CL, CT, S, L, XL, SL models, Z50, XR50, ATC70, ATC90, C70, CL70.
  • CRF70, CT70, SL70, TRX70, XL70, XR70, TRX90, 50cc, 70cc, 90cc, 90cc, 110cc, 125cc ATV, dirt bikes, and go karts.
Bestseller No. 6
Lock Nut Wrench Clutch Lock Nut Removal Tool 20mm 24mm Clutch Lock Nut Spanner Socket for...
  • For 50cc-125cc Motorcycle ATV Dirt Bike Go Kart Pit Bike 4 Wheeler
  • Inner Diameter(upper): 20mm/0.78 inch; Inner Diameter(under): 24mm/ 0.94 inch
  • 4-pin socket clutch nut tool, each end has 4 pegs
  • Solid steel material, sturdy construction, durable in using
  • Please compare your old part to make sure the clutch lock nut spanner socket is the one that you need
Bestseller No. 7
Motorcycle 20mm 24mm Lock Nut Removal Tool Clutch Remover 4-Pin Spanner Socket Wrench fits for Honda...
  • Replace honda special tool: # 07716-0020100, 07vma-mbb0100-101, Removes honda locknut: 90231-0231-028-000, 90231-200-010.
  • Fits for 50cc, 70cc, 90cc, 90cc, 110cc, 125cc ATV, dirt bike, go karts Horizontal Engine; Honda CRF50, XR200, XR200R, XR250L, XR250R, Z50, XR50,...
  • Also fits most of other brands: Roketa, SSR, TaoTao, Supermach, Coolsport, Coolster, Hensim, Jetmoto, Jonway, Kazuma, Kinroad, Lance, NST, Baja, BMS,...
  • SIZE: Total length: 60mm/2.36"; Small End Inner Diameter: 20mm / 0.79", Outer Diameter: 26mm / 1"; Large End Inner Diameter: 24mm / 0.94", Outer...
  • Please Check The Size Before You Buying It
Bestseller No. 8
19-21mm Scaffold Spanner Ratcheting Socket Wrench Flat Satin Cr-v Ratchet Podger Tool
  • Size:19-21mm.Drive square size (inch): 1/2,edge size (inch): 20.
  • The two-way conversion design, the whole head adopts the two-way conversion design and rotates only 5 degrees, the maintenance space is narrow and...
  • The chrome vanadium steel electrophoresis process is precision forged, with strong toughness, durability, high strength and high torque.
  • Suitable widely in garage, workshop, carpentry, auto parts, specializing in machine repair and so on; It is a ideal and practical hand tool in home...
Bestseller No. 9
2-in-1 Lock Nut Wrench Clutch Lock Nut Tool, 20mm/24mm clutch lock nut spanner socket for Crf 600rr...
  • STURDY SOLID MATERIAL -- The clutch lock nut spanner is made of solid steel material, sturdy construction, durable in using
  • DESIGNED FOR LOCK SPANNER KIT -- A special and perfect replace grom clutch removal tool for : Replace special tool: # 07716-0020100,...
  • IMPORTANT DATA FOR YOU TO CHECK -- Large End Inner Diameter: 24mm / 0.94 inch; Large End Outer Diameter: 30mm / 1.18 inch; Please compare your old...
  • COMES WITH 4 PIN LOCK NUT SPANNER -- 4-pin socket clutch nut tool, each end has 4 pegs; One side is 20mm inner diameter and another side is 24mm inner...
  • FITMENT -- This clutch nut tool can be used for 14mm clutch lock nut on: crf50, xr200 1980-1984, xr200r 1984-1994, xr250l 1991-1994, xr250r 1986-1994,...
Bestseller No. 10
Honda Type 20mm ID, 25mm OD / 24mm ID, 30mm OD Castle Nut Engine Motor Mount Lock Nut 4 pin Spanner...
  • Put your hammer and chisel away! Stop trying to be a genius! This Two-Sided socket spanner for many different uses on many Hondas old and new.
  • Can be used to remove castle type motor mount lock nut lock nut on many different late model Honda CBR1000RR, CBR600RR, CBR600F4, CBR900RR, GL1800,...
  • Impact drill is NOT recommended when using tools like this. Lubricate the threads thoroughly prior to use. A breaker bar might be helpful for...
  • Two-sided with 20mm ID (25mm OD) 4-pin spanner on one side and 24mm ID (30mm OD) 4-pin spanner on the other side.
Bestseller No. 11
20mm 24mm Clutch Lock Nut Tool, Clutch Lock Nut Spanner Socket for Crf 600rr 450r 250l
  • STURDY SOLID MATERIAL -- The clutch lock nut spanner is made of solid steel material, sturdy construction, durable in using
  • DESIGNED FOR LOCK SPANNER KIT -- A special and perfect replace grom clutch removal tool for : Replace special tool: # 07716-0020100,...
  • IMPORTANT DATA FOR YOU TO CHECK -- Large End Inner Diameter: 24mm / 0.94 inch; Large End Outer Diameter: 30mm / 1.18 inch; Please compare your old...
  • COMES WITH 4 PIN LOCK NUT SPANNER -- 4-pin socket clutch nut tool, each end has 4 pegs; One side is 20mm inner diameter and another side is 24mm inner...
  • FITMENT -- This clutch nut tool can be used for 14mm clutch lock nut on: crf50, xr200 1980-1984, xr200r 1984-1994, xr250l 1991-1994, xr250r 1986-1994,...
Bestseller No. 12
HIFROM Clutch Hub Remove Lock Nut Tool Spanner Socket Wrench Replacement for 2003 2002 2004 2005...
  • 1.This is a 4-pin Socket Spanner Tool. Two-sided with 20mm ID (25mm OD) 4-pin spanner on one side and 24mm ID (30mm OD) 4-pin spanner on the other...
  • 2.Double ended, each end has 4 pegs. Internal size of the pegs at one end is 24 mm the other end is 20mm. A 1/2" drive is required to use it.
  • 3.Socket Wrench Tool replacement for 2003 2002 2004 2005 2006 2007 2008 Kawasaki NINJA ZX6 ZX6R ZX6RR ZX-6 ZX-6R ZX-6RR ZX600 ZX600R ZX636R ZX10 ZX10R
  • 4.Package include:1 Pc x Engine Clutch Lock Nut Socket Wrench Tool
  • 5.HIFROM focus on provide high quality products at fair price: Professional factory, Professional technical support; 3 Months warranty; if you...
Bestseller No. 13
24mm 20mm Bipolar Clutch Tool Wrench Lock Nut Spanner for HONDA ATC 110 125 ATC 90 CA 200 CB 200...
  • 24mm/ 20mm Spanner
  • Please Check The Size Before You Buy It
  • Fit HONDA ATC 110 125 ATC 90 CA 200 CB 200 Crf 600rr 450r 250l Bike Taotao Roketa SSR ATV Dirt Bike
  • Fit Honda Combo Gl 1200 1984 1985 1986 ,Replace honda special tool: # 07716-0020100, 07vma-mbb0100-101,Removes honda locknut: 90231-0231-028-000,...
  • Also can use for honda 14mm clutch locknut on crf50, xr200 1980-1984, xr200r 1984-1994, xr250l 1991-1994, xr250r 1986-1994, cl, ct, sl & xl models....
Bestseller No. 14
24mm 20mm Clutch Tool Wrench Lock Nut Spanner for ATC 110 ATC 125 ATC 90 CA 200 CB 200
  • ★24mm/ 20mm Oil Filter & Clutch Hub Spanner Tool for 90cc to 125cc Engines and 200cc to 300cc engine made in China. For All of the ATV brands from...
  • ★SIZE: 0.94'' / 24mm inside diameter on one side 1'' / 26mm OD ; 0.79'' / 20mm inside diameter on another side 1.2'' / 30mm OD. This clutch lock nut...
  • ★Replaces special tool: # 07716-0020100, 07VMA-MBB0100-101.
  • ★Removes Locknut: 90231-028-000, 90231-200-010.
  • ★Please check pictures and specifications for compatibility. Quality assurance, unconditional lifetime guarantee, so you can purchase now with...
Bestseller No. 15
Powerbuilt 648473 Spindle Nut Socket Black, 4-Lug, 2-3/8" Outer
  • Made to be the most reliable tools in the market today
  • Tool solutions for most all situations
  • Built to exceed tool standards
  • For easy removal of spindle nuts; Not for impact wrench use
  • 4-lug, 2-3/8-inch outer diameter, 1/2-inch drive
SaleBestseller No. 16
Powerbuilt 648636 5 pc Spindle Nut Socket Kit , Black
  • Made to be the most reliable tools in the market today
  • Tool solutions for most all situations
  • Built to exceed tool standards
  • Tool set for removing spindle nuts
  • Impact rate 6-Point chrome vanadium sockets
Bestseller No. 17
DURATECH Midget Wrench Set, Mini Combination Wrench Set, Metric & SAE, 20-Piece, 4-11mm & 5/32'' to...
  • Wrenches are made from durable carbon steel, additional mirror finish improves the corrosion resistance of the surface and effectively prolong the...
  • Lightweight( SUPER MINI) - Portable tool storage that is perfect for storing in car, garage, tool box or pocket. The mini size is excellent for use in...
  • Angled 15°box end for regular use applications. Box end:4pcs 6 points, 16pcs 12 points.
  • 20 Pieces high quality wrenches that exceeds ANSI standard, 10 PC SAE Size: 5/32", 3/16", 13/64", 7/32", 15/64", 1/4", 9/32", 5/16", 3/8", 7/16" and...
  • Unique roll-up packaging advantages make wrenches easy to carry and effectively prolong the service life.
SaleBestseller No. 18
DURATECH Super-Thin Open End Wrench Set, Metric, 8-Piece, Including 5.5, 7, 8, 9, 10, 11, 12, 13,...
  • Quality Spanner: Thin, but strong. Made of premium carbon steel with mirror polish finish. Chrome plated for rust-resistance, heat treated for maximum...
  • 3 mm Super-Thin: 3 mm SUPER THIN wrenches which let you reach fasteners in tight clearance. Useful especially in narrow spots where traditional...
  • Less to Carry: 2 sizes per wrench provides more options with less to carry. Wrench sizes are stamped twice on both sides of handle for easier size...
  • Popular Size Pouch: The wrench set comes with a rolling pouch for convenient storage. The pouch has each wrench size printed for easy organization....
  • Good choice: Our Super-Thin double open end wrench set is pretty anti-abrasive. Practical design, widely applicable in industries as bicycle,...
Bestseller No. 19
Starter Clutch Lock Spanner Removal Tool Nut Socket for Scooter GY6 125cc 150cc ATV Moped
  • Fitment: Fits GY6 125cc 150cc scooters ATVS Moped
  • Material: The starter clutch removal tool made of heat treated premium metal, it is of high strength and long durability
  • Size: Length: 9.6cm/3.78 inch; Inner Diameter: one side is 13mm/0.51 inch and another side is 27mm/1.06 inch; outside diameter: one side is 34mm/1.34...
  • Easy to use: With four claws and square connection, it is easy to match the position and tools
  • Package includes: 1 starter clutch removal tool
Bestseller No. 20
EPAuto 45 Pieces 3/8" Drive Socket Set with 72-Tooth Pear Head Ratchet
  • Durability: Made from Hardened treated Chrome Vanadium steel alloy (Cr-V)
  • Corrosion-Resistant: Chrome Plated & Mirror Polished
  • Easy Storage: A sturdy plastic storage case is included.
  • 72-Tooth Pear Head Ratchet with Both Metric and English sizes Sockets
  • Made in Taiwan

Having trouble finding a great 20mm spanner socket?

This problem is well understood by us because we have gone through the entire 20mm spanner socket research process ourselves, which is why we have put together a comprehensive list of the best 20mm spanner sockets available in the market today.

After hours of searching and using all the models on the market, we have found the best 20mm spanner socket for 2023. See our ranking below!

How Do You Buy The Best 20mm Spanner Socket?

Do you get stressed out thinking about shopping for a great 20mm spanner socket? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 20mm spanner socket, which is why we have assembled a comprehensive list of the greatest 20mm spanner socket available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 20mm spanner socket that you consider buying. Your questions might include the following:

  • Is it worth buying an 20mm spanner socket?
  • What benefits are there with buying an 20mm spanner socket?
  • What factors deserve consideration when shopping for an effective 20mm spanner socket?
  • Why is it crucial to invest in any 20mm spanner socket, much less the best one?
  • Which 20mm spanner socket are good in the current market?
  • Where can you find information like this about 20mm spanner socket?

We’re convinced that you likely have far more questions than just these regarding 20mm spanner socket, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 20mm spanner socket, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 20mm spanner socket. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 20mm spanner socket buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 20mm spanner socket currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 20mm spanner socket has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 20mm spanner socket?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 20mm spanner socket.
  5. Customer Ratings: Number ratings grade 20mm spanner socket objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 20mm spanner socket.
  7. Product Quality: You don’t always get what you pay for with an 20mm spanner socket, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 20mm spanner socket is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 20mm spanner socket information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 20mm spanner socket is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

FAQ:

Q: What is the difference between a spanner socket and a puller socket?

A: Also known as spanner sockets, they’re similar to tri-groove sockets but have four or six pins instead of three. Spindle puller adapters remove the front spindle on four-wheel drive trucks so you can access the needle bearing when lubricating and aligning the front wheels. 8-point sockets fit 8-point nuts and square nuts.

Q: What are the different sockets on a wrench?

A: These are square drive sockets for use with hand-driven tools, not impact wrenches. Made of steel, they grip locknuts tightly and prevent rounding. 4-pin and 6-pin sockets fit around retaining locknuts with slots or holes in the side. Also known as spanner sockets, they’re similar to tri-groove sockets but have four or six pins instead of three.

Q: What are 4-pin and 6-pin sockets?

A: 4-pin and 6-pin sockets fit around retaining locknuts with slots or holes in the side. Also known as spanner sockets, they’re similar to tri-groove sockets but have four or six pins instead of three.

Q: What size socket do I need for a locknut wrench?

A: These sockets require less clearance around bearings than standard hook spanner wrenches, so they’re good in tight spaces. Use them with a square-drive wrench handle or a ratchet wrench; they’re not for use with impact wrenches. 6-pin and 9-pin sockets are sized for wheel bearing locknuts on trucks.