NEW 29 PC. SET 1/16" TO 1/2" BY 64THS. OF PRECISION TWIST DRILL BITS THAT ARE JOBBER LENGTH AND SUPPLIED IN A HUOT METAL INDEX DRILL CASE.
ALL DRILL BITS ARE HIGH QUALITY MODEL R-10 SOLID M-42 COBALT WITH A BRONZE OXIDE COATING 135 DEGREE SPLIT POINT.
COBALT PROVIDES BETTER WEAR RESISTANCE IN HARDNESS AND TOUGHNESS COMPARED TO HIGH SPEED STEEL "HSS" DRILL BITS. FOR USE IN HIGH - TENSILE ALLOYS, TITANIUM, CAST IRON, INCONEL, AND HIGH - NICKEL STAINLESS STEELS.
135 DEGREE SELF- CENTERING SPLIT POINT PREVENTS DRILL FROM WALKING.
HEAVY-DUTY CORE CONSTRUCTION PROVIDES GREATER STRENGTH AND RIGIDITY THAN CONVENTIONAL DRILLS.
ALL DRILL BITS EXCEPT THE 4 SMALLEST HAVE THE PRECISION TWIST FORGE AND "CO" FOR COBALT STAMPED ON THEM.