. E Cobalt Heavy Duty Jobber Length Drill Bit Cobalt jobber drills. Heavy Duty 135 Split Point, Cobalt Steel, Jobber Length, manufactured to National Aerospace standard 907.
For use with magnetic drill press only. m2 High Speed Steel Cuts only necessary material for fast, efficient, quality hole making. Also called magnetic drills or mag drills.
The slot is beveled so that when the dies are used in a machine holder the adjusting screw can be removed and adjustment made by the adjusting screws in the holder Round Dies are chamfered on both faces. Adjustment is obtained by a fine pitch screw which forces the sides of the die apart, or allows them to spring together.
Killer Force Drills (KFD) have a heavy duty 135 degree split point for self-centering and reducing thrust. Gold and black surface treated for use in stainless steel and other hard metal drilling.00mm HSS Black & Gold KFD Split Point Jobber Length Drill Bit.