12 Piece HSS-Co5 Cobalt Drill Refill Set Suits all standard hole saws

Suits all standard hole saws

5-HSS Twist Drills

biostable Extreme Pressure soluble cutting fluid providing excellent corrosion protection

High temperature brazing for longer life

Improves tool performance

12 Piece HSS-Co5 Cobalt Drill Refill Set Suits all standard hole saws12 Piece HSS Co5 Cobalt Drill Refill Set Bordo Metric Cobalt Tough HSS Co5 Twist Drills. DIN338 135 Split Point (crankshaft point). Split point is self centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust. The 135 point should be used to cut harder steel materials especially in deep hole applications. In these situations it will produce thicker chips minimising work