Drill Blanks | McMaster-Carr

1/64"
1/32"
3/64"
1/16"
5/64"
3/32"
7/64"
1/8"
9/64"
5/32"
11/64"
3/16"
13/64"
7/32"
15/64"
1/4"
17/64"
9/32"
19/64"
5/16"
21/64"
11/32"
23/64"
3/8"
25/64"
13/32"
27/64"
7/16"
29/64"
15/32"
31/64"
1/2"
33/64"
17/32"
35/64"
9/16"
37/64"
19/32"
39/64"
5/8"
41/64"
21/32"
43/64"
11/16"
45/64"
23/32"
47/64"
3/4"
49/64"
25/32"
51/64"
13/16"
53/64"
27/32"
55/64"
7/8"
57/64"
29/32"
59/64"
15/16"
61/64"
31/32"
63/64"
1"
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	Number of Pieces Number of Pieces

	ID ID

	Density Density

0.52 lbs./cu. in.

0.62 lbs./cu. in.

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1,193 Products

About Tool Steel

Hardened Undersized High-Speed M2 Tool Steel Rods

These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits.

Hardened Undersized High-Speed
M2 Tool Steel Rod Sets

These rod sets are supplied in a metal index case with fold-out panels.

Hardened Oversized High-Speed M2 Tool Steel Rods

Also known as reamer blanks, these rods are hardened for increased abrasion and impact resistance.

Tight-Tolerance High-Speed M2 Tool Steel Rods

Ready for turning in a lathe, these precision-ground rods have a tight diameter tolerance and are held to a strict straightness tolerance.

Oversized High-Speed M2 Tool Steel Rods

An oversized diameter allows for finishing to your exact requirements.

Hardened High-Speed M42 Tool Steel

Also known as cobalt steel, this M42 tool steel maintains its hardness in high-speed cutting applications that generate intense heat. Use it to make tools for cutting extremely hard materials.

Tight-Tolerance Multipurpose
Oil-Hardening O1 Tool Steel Rods

Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance.

Hardened Tight-Tolerance Multipurpose
Oil-Hardening O1 Tool Steel Rods

Hardened for increased abrasion and impact resistance, these precision-ground rods have a tight diameter tolerance and are ready for turning in your lathe.

Oversized Multipurpose Oil-Hardening
O1 Tool Steel Rods and Discs

An oversized diameter allows for finishing to your exact requirements.

Tight-Tolerance Multipurpose
Air-Hardening A2 Tool Steel Rods

Precision ground and held to a strict straightness tolerance, these rods are ready for turning in your lathe.

Hardened Tight-Tolerance Multipurpose
Air-Hardening A2 Tool Steel Rods

Hardened for increased abrasion and impact resistance, these rods are precision ground with a tight diameter tolerance.

Oversized Multipurpose Air-Hardening
A2 Tool Steel Rods and Discs

An oversized diameter allows for finishing to your exact requirements.

Tight-Tolerance Easy-to-Machine W1 Tool Steel Rods

Ground and held to strict diameter and straightness tolerances, these rods are ready to be turned in a lathe.

Tight-Tolerance Wear-Resistant D2 Tool Steel Rods

All set for turning in your lathe, these precision-ground rods are held to a strict straightness tolerance.