drill bits & sets
mountain 55699 13 piece cobalt mountain drill bit set
p strong features and benefits strong p ul li made from premium grade cobalt steel li li 135 degree split point requires no center punching li li for cutting extremely hard metals including stainless steel li li includes sizes from 1 16 to 1 4 li li all included in a hard case li ul p cobalt drill bits are designed to cut through extremely hard metals including stainless steel . extremely heat resistant must be operated in power units that have a rpm speed of 1500 or higher for maximum efficiency . p p p
mountain