Drill Blanks | McMaster-Carr

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	System of Measurement System of Measurement

	Diameter Diameter

	Material Material

	Tolerance Rating Tolerance Rating

	Hardness Rating Hardness Rating

	Heat Treatment Heat Treatment

Annealed (Softened)

	Mechanical Finish Mechanical Finish

Precision Ground

	Yield Strength Yield Strength

	Elongation Elongation

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Drill Bit Size Drill Bit Size

	Fabrication Fabrication

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

	Specifications Met Specifications Met

	Reamer Size Reamer Size

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"
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	Number of Pieces Number of Pieces

	Density Density

0.52 lbs./cu. in.

0.62 lbs./cu. in.

	ID ID

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1,107 Products

About Tool Steel

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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

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

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

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.

Oversized Wear-Resistant D2
Tool Steel Rods and Discs

Oversized Wear-Resistant D2 Tool Steel Rods and Discs

An oversized diameter allows for finishing to your exact requirements.

Ultra-Hard C2 Tungsten Carbide Rods

Ultra-Hard C2 Tungsten Carbide Rods

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