Set 2 pezzi punte per rubinetto e trapano M3 x 0,5 rubinetto filettato e punta da trapano ossido nero 2,5 mm

Use with appropriate lubricant (such as cutting fluid or oil) to get higher quality threads and more durable tap & drill bit. Straight flute tap can process through holes or shallow blind holes, with downward chip removal, clear threads, no burrs, right-hand cutting, and fast and accurate tapping.

eBay