4.25 mm Drill Bits | McMaster-Carr

Filter by

System of Measurement

Drill Bit Size

5/8" to 1 3/16"

1 1/2" to 2 1/16"

80 Ga. to 61 Ga.

80 Ga. to 1 Ga.

60 Ga. to 1 Ga.

1 Ga. to 30 Ga.

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")

Decimal Size Equivalent

For Use On

Stainless Steel

Material

M2 High-Speed Tool Steel

For Use With

Length Class

Shank Size

REACH

Flute Direction

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Bit Style

Sold As

Maximum Drilling Depth

Drill Bit Point Type

Point Angle

Overall Length

Width

Length

Shank Type

Number of Flutes

Performance

Specifications Met

Finish

How can we improve?

3 Products

Fabricating and Machining

Drill Bits

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

Measuring and Inspecting

Drill Bit Size Gauges

Drill Bit Size Gauges

Match your drill bit to one of the holes to confirm its size

Raw Materials

Steel

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

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