Drill Bit Sets Pack Of 12, 1/4-Inch Titanium Nitride Coated Drill Bahrain Drill Bits Set Always wear safety goggles and safety items when drilling. High-speed steel (HSS) is a type of carbon steel that's highly resistant to heat, making it ideal for high-speed applications like drilling. Manufacturers coat HSS drill bits with titanium nitride to create titanium drill bits MADE FROM PREMIUM HIGH-SPEED STEEL: peform better because of its well-balanced toughness 17/64 inch Cobalt Drill Bits 12Pcs, M35 HSS Metal INCLUDE: 12 pieces of 11/64-Inch titanium coated drill bits with case APPLICATION: offer best durability and speed for repetitive drilling in medium and softer materials, soft metal, PVC and wood Overall Pick 11/64 Inch Drill Bit (3 Pack) Industrial Grade M35 Cobalt Titanium Aluminum Nitrite - 11/64" Diameter & Total Length of 4" with Working Length of 2-3/4" Easily Drill Into Metal, Steel, & Aluminum 100 bought in past month Add to cart Made in China You Will Get: 12 pieces of 11/64-Inch., x 3-1/4-Inch. Warning: Drill bits can shatter during use. titanium coated drill bits with case Notice: For high-speed drilling through metal, lubricate the bit with lightweight oil.