Square Tool Bit Blanks | McMaster-Carr

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	Shape Shape

	Sheet and Bar

	Shank Type Shank Type

	Square

	System of Measurement System of Measurement

Inch

Metric

	Thickness Thickness

	Width Width

	Length Length

	Material Material

High-Speed Steel

Steel

Carbide

	Tolerance Rating Tolerance Rating

Tight

Oversized

Standard

	Shank Width Shank Width

	Mechanical Finish Mechanical Finish

Precision Ground

Ground

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Hardness Rating Hardness Rating

Medium

Very Hard

	Hardness Hardness

	For Use On For Use On

	Maximum Hardness After Heat Treatment Maximum Hardness After Heat Treatment

	Fabrication Fabrication

Hot Rolled

Cold Worked

	Appearance Appearance

	Plain

	Yield Strength Yield Strength

Less than 52,000 psi

52,000 to 59,999 psi

60,000 to 99,999 psi

200,000 psi or greater

Not Rated

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Elongation Elongation

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

RoHS Compliant with
Exemptions

	Specifications Met Specifications Met

ASTM

Mil. Spec.

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

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966 Products

About Tool Steel

Grind-Your-Own Lathe Tool Blanks

Grind these hardened steel blanks to the size and shape you need.

Tool Steel

Tight-Tolerance High-Speed M2 Tool Steel Bars

These bars are precision ground to a tight thickness tolerance.

Hardened High-Speed M2 Tool Steel Sheets

Hardened for increased abrasion and impact resistance.

Wear-Resistant High-Speed M4 Tool Steel Bars

Made from powdered metal, M4 tool steel has a consistent microstructure that gives it outstanding resistance to wear and abrasion. It is comparable to CPM Rex M4.

Tight-Tolerance Multipurpose Oil-Hardening
O1 Tool Steel Sheets and Bars

These precision-ground sheets and bars are held to a tight thickness tolerance.

Oversized Multipurpose
Oil-Hardening O1 Tool Steel Bars

With an oversized thickness, length, and width, these bars can be finished to your exact requirements.

Easy-to-Machine W1 Tool Steel Bars

These W1 bars have lower amounts of alloy elements than other tool steels for excellent machinability.

Tight-Tolerance Multipurpose Air-Hardening
A2 Tool Steel Sheets and Bars

These sheets and bars are precision ground to a tight thickness tolerance.

Oversized Multipurpose Air-Hardening
A2 Tool Steel Sheets and Bars

The thickness, length, and width are oversized for finishing to your exact requirements.

Tight-Tolerance Wear-Resistant D2 Tool Steel Bars

The thickness on these bars is precision ground to a tight tolerance.

Oversized Wear-Resistant D2 Tool Steel Bars

The thickness, length, and width are oversized for finishing to your exact requirements.

Tight-Tolerance Shock-Resistant S7 Tool Steel Bars

The thickness on these bars is precision ground to a tight tolerance.

Oversized Shock-Resistant S7 Tool Steel Bars

Also known as flat stock, these bars have an oversized thickness, length, and width for finishing to your exact requirements.

Oversized High-Temperature H13 Tool Steel Bars

Oversized for finishing to your exact requirements.

Ultra-Hard C2 Tungsten Carbide Bars

These bars are also known as flat stock.

About Tool Steel

Grind-Your-Own Lathe Tool Blanks

Grind-Your-Own Lathe Tool Blanks

Tool Steel

Tight-Tolerance High-Speed M2 Tool Steel Bars

Hardened High-Speed M2 Tool Steel Sheets

Wear-Resistant High-Speed M4 Tool Steel Bars

Tight-Tolerance Multipurpose Oil-HardeningO1 Tool Steel Sheets and Bars

Oversized MultipurposeOil-Hardening O1 Tool Steel Bars

Easy-to-Machine W1 Tool Steel Bars

Tight-Tolerance Multipurpose Air-HardeningA2 Tool Steel Sheets and Bars

Oversized Multipurpose Air-HardeningA2 Tool Steel Sheets and Bars

Tight-Tolerance Wear-Resistant D2 Tool Steel Bars

Oversized Wear-Resistant D2 Tool Steel Bars

Tight-Tolerance Shock-Resistant S7 Tool Steel Bars

Oversized Shock-Resistant S7 Tool Steel Bars

Oversized High-Temperature H13 Tool Steel Bars

Ultra-Hard C2 Tungsten Carbide Bars

Ultra-Hard C2 Tungsten Carbide Bars

Tight-Tolerance Multipurpose Oil-Hardening
O1 Tool Steel Sheets and Bars

Oversized Multipurpose
Oil-Hardening O1 Tool Steel Bars

Tight-Tolerance Multipurpose Air-Hardening
A2 Tool Steel Sheets and Bars

Oversized Multipurpose Air-Hardening
A2 Tool Steel Sheets and Bars