HSS Tap Drill Bit Set, 2 in 1 Combination Drills and Taps Set, M3 M4 M5 M6(6PCS)

Shank Dia: 6.2 mm 1/4 hexagonal shank. 6x drilling tap Countersunk. Self Entrierender at a low temperature, do not require any guide hole or by dance.

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