M35 High-Speed Steel Cobalt-Containing Drill Bit Twisted Straight Handle Fully Ground Stainless Metal Reamer 4.2 for Machine
These straight-shank twist drills are manufactured from premium M35 cobalt high-speed steel with fully ground finish. Available in a full range of sizes including 4.2mm diameter, they are designed for drilling and hole enlarging of stainless steel and various metals, compatible with drill presses and handheld electric drills.
The cobalt-reinforced substrate delivers exceptional heat and wear resistance for demanding stainless steel machining. Precision fully ground cutting edges ensure sharp penetration, smooth chip flow, consistent hole accuracy and superior inner surface quality in sustained production.
Ideal for drilling and reaming operations on stainless steel, carbon steel and other metal workpieces, they come in comprehensive diameter specifications. They feature prolonged service life and excellent cost-effectiveness, cutting tool replacement frequency and boosting overall machining efficiency.
