1/4" Drill Bits | McMaster-Carr

Filter by

System of Measurement

Drill Bit Size

0.35 mm to 2.5 mm (Increments of 0.05 mm)

1", 1 1/32", 1 1/16", 1 1/8", 1 5/32", 1 3/16", 1 1/4", 1 5/16", 1 3/8", 1 7/16", 1 1/2"

1.0 mm to 10.0 mm (Increments of 0.5 mm)

1.0 mm to 13.0 mm (Increments of 0.5 mm)

1.0 mm to 5.9 mm (Increments of 0.1 mm)

1.0 mm to 6.9 mm (Increments of 0.1 mm)

1.0 mm to 7.0 mm (Increments of 0.5 mm)

1/16" to 1/2" (Increments of 1/64")

1/16" to 1/2" (increments of 1/32")

1/16" to 1/4" (Increments of 1/64")

1/16" to 3/8" (Increments of 1/64")

1/2" to 1" (Increments of 1/64")

1/64" to 1/4" (increments of 1/64")

2.6 mm to 10.0 mm (Increments of 0.1 mm)

6.0 mm to 10.0 mm (Increments of 0.1 mm)

9/16" to 1" (increments of 1/16")

33/64" to 63/64" (Increments of 1/64")

For Use On

Length Class

Overall Length

Drill Bit Point Type

Shank Type

Finish

Aluminum Titanium Nitride (AlTiN) Coated

Titanium Aluminum Nitride (TiAlN) Coated

Titanium Carbon Nitride (TiCN) Coated

Titanium Nitride (TiN) Coated

Uncoated

Maximum Drilling Depth

Material

Shank Size

Point Angle

Flute Direction

Decimal Size Equivalent

Bit Style

Flute Type

Sold As

Number of Flutes

Screw Size

For Drilling Type

Thread Size

Number of Pieces

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

Forward

How can we improve?

231 Products

Fabricating and Machining

Drill Bits

Create holes in metal, wood, plastic, concrete, and more

176 products

Drill Bit Guides

Drill precise holes without building a fixture

2 products

Drill Stops

Limit how far bits can drill to create identical hole depths every time

2 products

Drill Bit Extensions

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

4 products

Center Drills

Drill cone-shaped openings in workpieces to mount them between centers on your lathe

23 products

Counterbores

Enlarge the top of a hole to install socket and hex head screws flush with the surface

8 products

Countersinks

Cut a cone-shaped opening in a hole to install flat-head screws and rivets flush with the surface

6 products

Containers, Storage, and Furniture

Tap and Drill Bit Stands

Organize taps and drill bits by size

1 product

Raw Materials

Steel

Strong, machinable, and weldable—all with material certificates for traceability

1 product

Fastening and Joining

Threaded Inserts

Create new threads or repair stripped threads

2 products