Dormer Pramet R520 4.00 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539 FMH FLH FHH S&E A&NF M&D The long-neck geometry shifts most

The long-neck geometry shifts most cutting forces away from the shank

The Wiseman Threading Tools taper lead HSS tap in metric M42x3 is crafted for serious metalworking where strong

With its exact 7/16 x 20 UNF left-hand threads and 2B tolerance

TiN Coating for Extended Life: The Titanium Nitride coating reduces wear and lowers friction

electronics labs

Dormer Pramet R520 4.00 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539 FMH FLH FHH S&E A&NF M&D The long-neck geometry shifts mostThe Dormer Pramet R520 4. 00 mm carbide TiN CDX straight shank stub drill (DIN 6539) is built for precise, dependable holemaking across a range of common metals. With a compact 4. 00 mm diameter and a straight shank, it fits standard chucks and delivers clean, accurate holes with minimal effort. Featuring a 130 degree point for self centering, a Titanium Nitride coating for longer life and better performance on harder materials, and convex cutting