Bordo 90 Degree HSS Co5 Single Flute Countersink Bit Diameter (mm):15 and the ultimate in strength

and the ultimate in strength and durability

●1/4" UNF thread fits precision and American machinery grease points

Sutton M42 cobalt HSS bevel-ground tool bit

suited to UNF sizes

Bordo 90 Degree HSS Co5 Single Flute Countersink Bit Diameter (mm):15 and the ultimate in strengthThis may be required to allow the correct seating for a countersunk head screw or to provide the lead in for a second machining operation such as tapping The fluted countersink cutter is used to provide a heavy chamfer in the entrance to a drilled hole M35 Cobalt High Speed Steel offers increased wear and heat resistance in alloy steels, stainless steels and other abrasive or difficult materials Use on light to medium materials. This increases tool