Description

CALAUTOTOOL                                    Monday -Friday 10-5pm PST Saturday 10-4 pm PSTIRWIN UNIBITS STEP BITSDescription: SpeedPoint® tip for fast starts.* • Geometry of single-flute cutting edge drills true, round holes and provides maximum step control. Titanium Nitride coating resists heat and friction, extending the cutting edge life up to six times longer than other high speed steel step drill bits. • SpeedPoint® tip for fast starts.*  # Description # of Hole Hex Shank Carded #1  1/8″ – 1/2″ (1/32″ steps)   1/4″ 10231 #2  3/16″ – 1/2″ (1/16″ steps) 13 1/4″ 10232 #3  1/4″ – 3/4″ (1/16″ steps) 6 3/8″ 10233 #4  3/16″ – 7/8″ (1/16″ steps) 9 3/8″ 10234 #5  1/4″ – 1-3/8″ (1/8″ steps) 12 7/16″ 10235 #9  7/8″ and 1-1/8″ (1/2″ and 3/4″ Knock-Out) 10 7/16″ 10239 #10  1/2″ (single hole)  2 1/4″ 10310 #11  7/8″ (single hole)  1 3/8″ 10311ZR #12  3/8″ (single hole)  1 1/4″ 10312ZR #13  1-1/8″ (single hole) 1 7/16″ 10313ZR #14  1-7/32″ (single hole) 1 7/16″ 10314 #20  9/16″ – 1″ (hole enlarging)  8 7/16″ 10220 #21  13/16″ – 1-3/8″(hole enlarging)  10 7/16″ 10221           #1M  4 mm – 12 mm (1 mm steps) 9 1/4″ 9 1/4″ 11101ZR #2M  4 mm – 12 mm (2 mm steps) 5 1/4″ 5 1/4″ 11102 #3M  6 mm – 18 mm (2 mm steps) 7 3/8″ 7 3/8″ 11103 #4M  4 mm – 22 mm (2 mm steps) 10 3/8 10 3/8″ 11104 #5M  5 mm – 35 mm (2-3 mm steps) 13 7 13 7/16″ 11105ZR #20 M 14 mm – 24 mm (hole enlarging)  6 7/16″ 11580 #21 M 20 mm – 34 mm (hole enlarging)  8 7/16″ 11581 PG2 9M 5 mm – 28.3 mm 10 7/16″ 11194 10 7/16″ 11194 29 mm   5 mm – 29 mm 10 7/16″ 11195 10 7/16″ 11195           #1T  1/8″ – 1/2″ (1/32″ steps) 13 1/4″ 15101ZR #2T  3/16″ – 1/2″ (1/16″ steps) 6 1/4″ 15102ZR #3T  1/4″ – 3/4″ (1/16″ steps) 9 3/8″ 15103ZR #4T  3/16″ – 7/8″ (1/16″ steps)  12 3/8″ 15104 #13T T 1-1/8″ (single hole)  16 7/16″ 15313 #20T T 9/16″ – 1″ (hole enlarging) 8 7/16″ 15200 #21T  13/16″ – 1-3/8″ (hole enlarging) 10 7/16″ 15221