Socket Reducers | McMaster-Carr

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System of Measurement

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Air Hammer Adapter

Dual-Drive Socket Adapter

Finger-Tightening Adapter

Hex Head Adapter

Hex Shank-to-Square Drive Adapter

Quick-Change Adapter

Ratchet Adapter

Secure-Hold Socket Adapter

Spline Drive-to-Square Drive Adapter

Square Drive Size Adapter

Torque-and-Angle Measuring Adapter

Torque-Limiting Adapter

Gender

Square Drive Gender

Drive Size

Fitting Type

Reducing Adapter

Material

Stainless Steel

Pipe Size

Socket Retainer Style

Finish

Magnesium Phosphate Coated

Shape

Overall Length

Drive Style

External 12-Point

External Square

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Fitting Connection

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Spec Image

Spec Image

Length

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Sold As

Drive Type

Socket Shape

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Compliant with Exemptions

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Export Control Classification Number (ECCN)

DFARS Specialty Metals

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1,158 Products

Socket Adapters

Socket Adapters

Square Drive Size Adapters

Square Drive Size Adapters

Convert from one square drive size to another

Square Drive Adapters for Power Tools

Square Drive Adapters for Power Tools

Attach square-drive sockets to drills, powered screwdrivers, and other hex-shank tools

Square Drive Size Adapter Sets

Square Drive Size Adapter Sets

Keep a range of adapter sizes on hand to convert from one square drive size to another

Convertible Square Drive Size Adapters

Convertible Square Drive Size Adapters

Push the square drive through the adapter to change size

Dual-Drive Socket Adapter Sets

Dual-Drive Socket Adapter Sets

A hex-shaped base fits into a ratchet wrench or open-end or box wrench for additional leverage

Hex Shank to Square Drive Adapters

Hex Shank to Square Drive Adapters

Install in your bit screwdriver to turn sockets

Finger-Tightening Socket Adapters

Finger-Tightening Socket Adapters

Fit between a wrench and socket, and spin the adapter with a finger to tighten

Ratcheting Socket Adapters

Ratcheting Socket Adapters

Change a standard wrench handle into a ratcheting wrench

Flex Socket Adapters

Flex Socket Adapters

Convert your socket into a flex socket to access fasteners from an angle

Torque-and-Angle Measuring Socket Adapters

Torque-and-Angle Measuring Socket Adapters

A digital display shows how torque measurements change as you turn the wrench

Square Drive Adapter Sets for Power Tools

Square Drive Adapter Sets for Power Tools

Keep a range of adapter sizes on hand to attach sockets to hex-shank power tools

Square Drive Adapters for Box Wrenches

Square Drive Adapters for Box Wrenches

Convert a ratcheting box wrench into a ratcheting socket wrench

Flex Socket Adapter Sets

Flex Socket Adapter Sets

Keep a range of adapter sizes on hand to convert sockets into flex sockets

Strong-Hold Flex Socket Adapters

Strong-Hold Flex Socket Adapters

Convert your socket into a flex socket without worrying about the adapter falling off

Strong-Hold Socket Adapters

Strong-Hold Socket Adapters

Lock to your tool and socket to prevent accidental disengagement

Fixed Torque-Limiting Socket Adapters

Fixed Torque-Limiting Socket Adapters

Come set to a specific torque limit for tasks needing the same torque every time

Adjustable Torque-Limiting Socket Adapters

Adjustable Torque-Limiting Socket Adapters

Set a desired torque to prevent overtightening and damaging fasteners

Electrical Insulating Square Drive Size Adapters

Electrical Insulating Square Drive Size Adapters

Insulated to protect against shock from accidental contact with live circuits

Electrical Insulating Hex Shank to Square Drive Adapters

Electrical Insulating Hex Shank to Square Drive Adapters

Turn sockets with a bit screwdriver and avoid accidental electrical shock

Impact Socket Adapters

Impact Square Drive Size Adapters

Impact Square Drive Size Adapters

Convert from one square drive size to another

Impact Square Drive Size Adapter Sets

Impact Square Drive Size Adapter Sets

Keep a range of adapter sizes on hand to convert your impact tools from one square drive size to another

Impact Spline Drive to Square Drive Adapters

Impact Spline Drive to Square Drive Adapters

Attach your square-drive impact socket to a spline-drive impact wrench

Impact Square Drive Adapter Sets for Power Tools

Impact Square Drive Adapter Sets for Power Tools

Keep a range of adapter sizes on hand to attach impact square-drive sockets to hex-shank power tools

Impact Flex Socket Adapters

Impact Flex Socket Adapters

Convert your impact socket into a flex socket to access fasteners from an angle

Impact Magnetic Square Drive Size Adapters

Impact Magnetic Square Drive Size Adapters

A magnet holds the socket, making changes quicker

Impact Quick-Change Socket Adapters

Impact Quick-Change Socket Adapters

Pull the collar to quickly attach and remove sockets

Impact Flex Socket Adapter Sets

Impact Flex Socket Adapter Sets

Keep a range of adapter sizes on hand to convert impact sockets into flex sockets

Impact Square Drive Adapters for Power Tools

Impact Square Drive Adapters for Power Tools

Attach impact square-drive sockets to power drills, impact drivers, and other hex-shank tools

Impact Square Drive Adapters for Air Hammers

Impact Square Drive Adapters for Air Hammers

Combine air-hammer pulses and a hand wrench to loosen stuck fasteners without breaking them

Impact Torque-Limiting Socket Adapter Sets

Impact Torque-Limiting Socket Adapter Sets

Keep a range of adapter sizes on hand and prevent overtightening that can damage fasteners

Impact Torque-Limiting Socket Adapters

Impact Torque-Limiting Socket Adapters

Prevent overtightening that can damage fasteners

Continuous-Use Socket Adapters

Continuous-Use Square Drive Size Adapters

Continuous-Use Square Drive Size Adapters

Last longer than standard impact adapters to tolerate high-volume applications

Continuous-Use Square Drive Adapters for Power Tools

Continuous-Use Square Drive Adapters for Power Tools

Connect sockets to impact wrenches and other power tools in high-volume applications

Other Products

Pipe and Fittings

Pipe and Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Wrench Heads

Attach to your ratchet wrench and socket extension to turn fasteners where clearance is limited

Pipe Traps

Create a seal that prevents the backflow of gas

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)