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وصف
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Drill Bits
1Pcs 6mm-30mm HSS Cobalt Taper Shank Twist Drill Bit For Stainless Steel(6/7/8/9/10/11/12/13/14/15/16/17/18/19/20/21/22/23/24/25/26/27/28/29/30mm)
The taper corresponding relationship:
1: the big end diameter phi 12.065, taper: 1:20.047
2: the big end diameter phi 17.78, taper: 1:20.020
3: the big end diameter phi 23.825, taper: 1:19.922
4: the big end diameter phi 31.267 taper: 1:19.254
5: the big end diameter phi 44.399 taper: 1:19.002