Included Components: 5Pcs Step Drill Bit & 5Pcs Countersink Drill Bit Set. Material: High Speed Steel (HSS). Material Type: High Speed Steel (HSS). Drill Bits Set: This unit step drill bit includes 5 step bit in sizes 3/16-1/2″, 1/8-1/2″, 1/4-3/4″, 3/16-7/8″, 1/4-1-3/8″, effectively replacing 50 sizes of conventional drill bits.
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5Pcs Step Drill Bit & 5Pcs Countersink Drill Bit Set, Titanium Coat… Fast Ship
Included Components: 5Pcs Step Drill Bit & 5Pcs Countersink Drill Bit Set. ✅ Drill Bits Set: This unit step drill bit includes 5 step bit in sizes 3/16-1/2″, 1/8-1/2″, 1/4-3/4″, 3/16-7/8″, 1/4-1-3/8″, effectively replacing 50 sizes of conventional drill bits.