reducing fatigue during long jobs
high oxidation temperature
M2 HSS Heavy Duty Mechanist Drill Bit Kit with Black and Gold
TiAlN COATING: TiAlN coating has excellent characteristics such as high hardness
HSS Sharp Impact Driver Drill Bits for Steel
29 PCS M35 Cobalt Drill Bit Set reducing fatigue during long jobs29 PCS M35 Cobalt Drill Bit Set, HSS Twist Jobber Drill Bits with 135 Degrees Split Point and Three Flat Shank, 3 8 Reduced Shank, Gold Oxide Metal Drill Bits Set (1 16 1 2 x 1 64) DRILL BIT SIZES: 1 16", 5 64", 3 32", 7 64", 1 8", 9 64", 5 32", 11 64", 3 16", 13 64", 7 32", 15 64", 1 4", 17 64", 9 32", 19 64", 5 16", 21 64", 11 32", 23 64", 3 8", 25 64", 13 32", 27 64", 7 16", 29 64", 15 32", 31 64" and 1 2" (by 1 64" increments). COBALT GOLD OXIDE