Juego de 50 brocas giratorias de cobalto HSS M35 1-3 mm acero metal hierro madera agujero cortador

6Pcs 1/4-in Hex Shank HSS Screw Thread Countersink Tap Drill Bit Combination Set. 3PCS Hex Spiral Grooved Step Conical Cone Drill Bit Set Hole Cutter 4-12/20/32mm. Material: High Speed Steel (M35 Cobalt).

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