5 By 16 Inch Cobalt Drill Bit Set, 10 Piece, Boss Grade M35 HSS, 135 Degree Tip, Jobber Length For Hardened Metal, Stainless Steel, Cast Iron, Wood, And Plastics, Includes Handy Index Storage Case

Cobalt Drill Bit Set for Metal, 5 by 16 Inches, 10-Piece
✔️ 1/32" shank, 1-1/4" overall length, 3/8" flute, 135° tip, case included

This 10-piece cobalt drill bit set uses M35 high-speed steel with 5% cobalt, delivering better heat and wear resistance for drilling hardened metal, stainless steel, cast iron, and tough plastics. Packaged with a handy index storage case for easy organization and transport.

Dimension	Inches	Millimètres
Diamètre de la tige	1/32"	0.80 mm
Longueur totale	1-1/4"	31,75 mm
Working length (flute)	3/8"	9,53 mm

✅ Material: M35 cobalt HSS for heat and wear resistance
✅ Shank: 1/32" diameter with precise 135° tip
✅ Length: overall 1-1/4" and flute/working length 3/8"
✅ Range: 10-piece set includes handy index storage case for organization
✅ Applications: stainless steel, hardened metal, cast iron, alloys, wood, plastics

💡 What is the best system to get the most life out of cobalt drill bits for tough metals?

Here’s a quick guide to maximize tool life and performance.

- Maintain steady feed rate and use appropriate speed for metal - Apply cutting fluid or coolant to reduce heat buildup - Start with a center punch to prevent wandering and ensure accuracy - Periodically clear chips to avoid binding and overheating