AMOOLO 1/4" Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood 1/4 in (10pcs) sold2026 85mm) Metal Drill Bits

85mm) Metal Drill Bits

exposing new aluminum oxide abrasive grains

The outer surface is marked with a size

plastics and ceramic

AMOOLO 1/4" Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood 1/4 in (10pcs) sold2026 85mm) Metal Drill BitsAMOOLO 1 4" Cobalt Drill Bits(10Pcs), M35 High Speed Steel Jobber Length Twist Drill Bit Set for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood Key Features Hard & Durable This drill bit contains 5% Cobalt (M35 Cobalt HSS), which increases the strength, the tool life and makes it more heat resistant. Rockwell Hardness >= 67 Precise Performance 135Split Point with straight shank prevents walking and makes drilling precise Fast Particles