4.25 mm Drill Bits | McMaster-Carr

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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

Length Class

For Use With

Shank Size

REACH

Flute Direction

Drill Bit Point Type

RoHS

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Bit Style

Sold As

Maximum Drilling Depth

Point Angle

Overall Length

Width

Length

Finish

Flute Type

Number of Flutes

Performance

Specifications Met

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.)