1/4"-20 Drill Bits | McMaster-Carr

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Tap Sizes Included

1 each of sizes 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, and 1/2"-13

1 each of sizes 4-40, 6-32, 8-32, 10-24, 10-32, and 1/4"-20

1 each of sizes 6-32, 6-40, 8-32, 8-36, 10-24, 10-32, 12-24, 12-28, 1/4"-20, 1/4"-28

1 each of sizes 6-32, 8-32, 10-24, 10-32, 1/4-20, 5/16-18, 3/8-16, 7/16-14, and 1/2-13

5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24, 7/16"-14, 7/16"-20, 1/2"-13, and 1/2"-20

5/16"-24

6-32

6-32, 8-32, 10-24, 10-32, 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, and 1/2"-13

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

Yes

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EAR99

DFARS Specialty Metals

REACH

Drill Bit Size

33 Products

Fabricating and Machining

Tap, Die, and Drill Bit Sets

Cut and repair internal and external threads and drill holes in many different sizes

1 product

Tap and Drill Bit Sets

Drill holes and cut internal threads in a variety of sizes

8 products

Taps

Cut internal threads for fasteners, pipe, conduit, and more

1 product

Drill Taps

Drill and thread holes with the same bit

6 products

Friction Drill Bits

Pair with friction drills to melt holes that have an outer lip in sheet metal

2 products

Countersink Drill Bits

A single bit drills and creates an angled surface so oval and flat screw heads sit flush

1 product

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

10 products

Building and Machinery Hardware

T-Slotted Framing Drill Jigs

Guide bits to drill straight, accurate holes in T-slotted rails

3 products