UNC Drill Bits | McMaster-Carr

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System of Measurement

Thread Size

For Use On

Thread Type

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Number of Pieces

Shank Type

Chamfer Type

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Die Sizes Included

Sold As

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

1 each of sizes 6-40, 8-36, 10-24, 10-32, 1/4-28, 5/16-24, 3/8-24, 7/16-20, and 1/2-20

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

Number of Drill Bits

Number of Taps

Pipe Size

Drill Bit Size

Maximum Tapping Depth

Material

Drill Bit Material

Flute Type

RoHS

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

EAR99

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

Yes

DFARS Specialty Metals

REACH

140 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

9 products

Taps

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

3 products

Drill Taps

Drill and thread holes with the same bit

44 products

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

83 products