13 Piece HSS-Co5 Cobalt Drill Refill Set monocottura

monocottura

Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering

Fully heat treated for increased durability

Controlled strengths

13 Piece HSS-Co5 Cobalt Drill Refill Set monocottura13 Piece HSS Co5 Cobalt Drill Refill Set Bordo Fractional Cobalt Tough HSS Co5 Twist Drills. ANSI B94 11 135 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