Heavy Duty Pro Grade Cobalt Drill Bit Set For Hardened Metal And Stainless Steel With 99 Pc M35 High Speed Steel Twist Jobber Bits One Sixteenth Inch To Three Eighths Inch In A Durable Plastic Index Case By Sinyeenglon

Cobalt Drill Bit Set for Hardened Metals, 99 Pcs in Case
✔️ 99pc cobalt HSS bits in tough index case, sizes 1/16 to 3/8 in

This heavy duty cobalt drill bit set is built for metalworking on hardened metals and stainless steel. It uses M35 cobalt material with a hardened grinding process for wear resistance, and comes in a sturdy plastic index case with compartmentalized storage for quick tool access.

✅ Material: cobalt M35 high speed steel for hardness up to 67 HRC and faster cutting
✅ Hardened full grinding process increases wear resistance
✅ Suitable for stainless steel, cast iron, zinc alloy, titanium, aluminum and hard metal
✅ Packaging: tough plastic index case with compartments for each size
✅ Access: sizes printed on the lid bottom for quick selection
✅ Included sizes: 16 pcs 1/16 in, 16 pcs 5/64 in, 15 pcs 3/32 in, 10 pcs 7/64 in, 10 pcs 1/8 in, 8 pcs 9/64 in, 8 pcs 5/32 in, 3 pcs 11/64 in, 3 pcs 3/16 in, 2 pcs 13/64 in, 2 pcs 7/32 in, 2 pcs 1/4 in, 2 pcs 5/16 in, 2 pcs 3/8 in

💡 What is a cobalt drill bit set used for in metalworking? This handy set is designed for drilling hardened metals and stainless steel with less heat and longer life. - Handy for projects involving thick metals and tough alloys - Great for stainless steel, cast iron, titanium, and hard alloys - Use with cutting fluid at low speeds to maximize life