Tool Extensions | McMaster-Carr

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System of Measurement

Overall Length

Square Drive Size

Socket Type

Secure-Hold Extension

Socket

Square Drive Size Adapter

Material

For End Mill Shank Diameter

Drill Bit Size

Finish

Magnesium Phosphate Coated

Unit Price

For Drill Bit Shank Type

Shank Type

Drive Size

Shank Size

Sold As

Barrel Length

For Drill Bit Shank Size

Drive Type

DFARS Specialty Metals

Compliant

Exempt

Export Control Classification Number (ECCN)

Shank Diameter

RoHS

Compliant with Exemptions

REACH

Thread Size

Length

Drive Style

For Use On

539 Products

Fabricating and Machining

End Mill Extensions

Lengthen the reach of your end mill

5 products

Drill Bit Extensions

Expand the reach of drill bits to get into deep and hard-to-reach spots

121 products

Countersink Extensions

Lengthen the reach of threaded-shank countersinks

3 products

Hole Saw Arbor Extensions

Reach your hole saw into spots where your drill is too big to fit

2 products

Tap Extensions

Extend the length of your tap to cut in hard-to-reach areas

15 products

Tap and Die Wrench Sets

Switch between internal and external threading with interchangeable tap and die adapters

1 product

Drill Chuck Arbor Extensions

Lengthen the reach of your drill chuck arbor

10 products

Fastening and Joining

Socket Extensions

Lengthen sockets to turn hard-to-reach fasteners

184 products

Wrench Handles

Generate extra torque to loosen stubborn fasteners; also known as breaker bars

1 product

Box Wrenches

Grip all sides of a fastener to prevent slipping

20 products

Adjustable Wrenches

Adjust the jaws to fasten different size nuts, bolts, or workpiece

1 product

Sockets

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

20 products

Ratchet Wrenches

Adjust fasteners in tight spaces without removing and repositioning the wrench

16 products

Combination Wrenches

Use the open end when tightening in cramped spaces and the box end when you need extra grip

13 products

Binding Barrels and Screws

Thread together for a low-profile fastener

113 products