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+1 (217) 579-80456X Longer life vs. the competitionM35 grade Cobalt HSSRadial concave fluteSpeedpoint tipLaser marked sizesSpecificationsItem #DescriptionHole SizesNumber of HolesIncrements10231CB#11/8" - 1/2"13 steps1/32" Increments10232CB#23/16" - 1/2"6 steps1/16" Increments10233CB#31/4" - 3/4"9 steps1/16" Increments10234CB#43/16" - 7/8"12 steps1/16" Increments10239CB#97/8" and 1-1/8"2 stepsfor 1/2" and 3/4 KO10220CB#209/16" - 1"8 steps1/16" Hole Enlarging11101CB#1M4mm - 12mm9 steps1mm Increments11102CB#2M4mm - 12mm5 steps2mm Increments11103CB#3M6mm - 18mm7 steps2mm Increments11104CB#4M4mm - 22mm10 steps2mm Increments