Dormer Pramet R520 7.40 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539 Standard Digital Calipers Why this tap is a

Why this tap is a practical choice

second lead: Suited for general purpose through‑hole tapping

With solid carbide and an AlTiN coating

promoting stable cuts and cleaner surface finishes

and more dependable performance on demanding projects

Dormer Pramet R520 7.40 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539 Standard Digital Calipers Why this tap is aThe Dormer Pramet R520 7. 40 mm carbide drill with a straight DIN 6539 shank is designed for engineers, fabricators, and hobbyists who need reliable, precise hole drilling across steel, stainless steel, and aluminum. Its 130 point helps self center the hole and reduces the push force required, making setup quicker and more predictable. The combination of premium carbide and a TiN coating delivers longer tool life and consistently sharp performance.