Hyjoy 21Pcs Cobalt Drill Bit Set (1/16"-3/8"), M35 HSS, 135 Degree Tip, Jobber Length for Hardened Metal, Steel, Cast Iron, Wood, and Plastics, with

Sizes: 21 Pieces 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", /64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8" Drill Bit Material: Constructed from industrial-grade M35 -speed steel with 5% cobalt addition, it typically offers resistance, wear resistance, and chip resistance, ensuring extended lifespan. : Round straight shank, Self-centering design avoids wandering, fully ground ensures by reducing friction, to use for materials steel, cast iron, alloy, wood, and hard plastics. Efficient processing: 135-degree split design, automatic centering of the quick point, low pressure, minimal friction, and reduced deviation, design allows for smooth removal of debris. Commitment: If for any reason you are not satisfied with your purchase, contact us. We offer 30-day % Satisfaction Guarantee for worry-free shopping!