Made in USA W-1 Water Hardening Drill Rod 19/64"

O-1 Tool Steel is a general purpose oil-hardening tool and die steel. Normal care in treatment gives good results in hardening and produces small dimensional changes. It has good abrasion resistance, and sufficient toughness for normal tool and die applications. When compared to a 1 percent carbon steel, O-1 has a machinability rating of 90.

Made from 1095 steel and color coded with red ends. Tough hardening quality affords optimum response to heat treatment and provides toughness and maximum wear resistance in service. High carbon content allows it to be used without heat treatment for many maintenance applications. Fine grained, electric furnace melt, commercial grade tool steel. Most popular, versatile, and least expensive type. Precision Brand® Drill Rod rounds are made of annealed, ground, and polished, general purpose tool steel. They are used for punches, tools and dies, drills, taps, arbors, roller bearings, dowel ...

A-2 Tool Steel is general purpose, 5% chrome air hardening tool steel. A-2 is popular because it has better wear resistance compared to S-7, A-6 and A-8 Tool Steel. A-2 is tougher and more ductile than D-2 Tool Steel. A-2 is also a very safe grade of Tool Steel to harden, and can be heat treated in most tool room furnaces without problem. When compared to a 1% carbon steel, A-2 has a machinability rating of 65.