0.072" Shafts | McMaster-Carr

Ready for turning in your lathe, these rods are precision ground and held to strict diameter and straightness tolerances. Also known as drill rod. With far less alloy content than other tool steel, W1 is the most machinable we offer. These rods are often used to make hammers, files, and reamers—tools that don't require the dimensional stability of A2 or O1. These rods are also decarb-free, which means any surface flaws created during the manufacturing process have been removed. This makes them even more machinable and leads to better results from heat treating or finishing. Heat treat the surface for extra wear resistance. Or, quench this steel in water to boost its hardness and strength, giving it a sharper, more durable edge for small tools.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Drill Bit Size, mm	Fabrication	Heat Treatment	Yield Strength, psi	Mechanical Finish	Hardness	Max. Hardness After Heat Treatment	Specs. Met		3 ft. Long	6 ft. Long
0.072"	0.000" to 0.0003"	1.8	Hot Rolled	Annealed	50,000	Precision Ground	Rockwell B95 (Medium)	Rockwell C65	ASTM A686	8890K118	00000	00000

Tight-Tolerance Oil-Hardening O1 Tool Steel Rods

Ready for turning in a lathe, these rods are precision ground to a tight diameter tolerance. They’re also known as drill rod. Often used for dies, punches, and gauges, O1 tool steel is an oil-hardening material that resists wear and abrasion. It can also be surface hardened with heat treating for added wear resistance.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

Dia.	Dia. Tolerance	Fabrication	Heat Treatment	Yield Strength, psi	Mechanical Finish	Hardness	Max. Hardness After Heat Treatment	Specs. Met		3 ft. Long	6 ft. Long
0.072"	-0.0003" to 0.0003"	Hot Rolled	Annealed	50,000	Precision Ground	Rockwell B90 (Medium)	Rockwell C65	ASTM A681	8893K121	00000	00000

Ultra-Formable 260 Brass Rods

The most formable brass alloy we offer. With its high copper content and little to no lead, 260 is so soft you can bend it at room temperature. It's often shaped into ammunition casings, radiator components, and decorative door hardware. Also known as cartridge brass.

				1 ft. Long			3 ft. Long
Dia.	Dia. Tolerance	Temper Designation	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
0.072"	-0.002" to 0.002"	H01	ASTM B134	3	8859K258	00000	1	8859K339	00000

High-Strength Fracture- and Wear-Resistant Zirconia Ceramic Rods and Discs

Ideal for applications that must resist bending and wear as well as carry heavy loads, these rods and discs are often used for sleeve bearings and shafts instead of metal. Added yttria gives this material more strength and lowers the chances of cracking from impact compared to standard zirconia, alumina, and silicon nitride ceramic. If cracks do occur, they will not spread, extending the life and reliability of this material. It also means this zirconia blend resists wearing down from rubbing against another part or abrasion from chemical slurries.

Zirconia ceramic resists bending better than ceramic alumina and silicon nitride ceramic but does not withstand rapid temperature changes or high temperatures as well as other high-performance ceramics.

Rods

			Temp.								6" Lg.		12" Lg.
Dia.	Dia. Tolerance	Color	Min.	Max., ° F	Fabrication	Performance	Dielectric Strength, V/mil	Porosity	Compressive Strength, psi	Hardness		Each		Each



	0.072"	-0.003" to 0.003"	White	Not Rated	2,700	Sintered	Fracture Resistant, High Strength, Wear Resistant	220	13%	350,000	Rockwell 45N 81	5919N11	000000	5919N12	000000