Dormer Pramet R520 4.50 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539 ISO Insert - RN Style Flute Configuration: 4‑flute design that

Flute Configuration: 4‑flute design that promotes efficient chip evacuation and stable cutting in tougher materials

accurate reaming for clean bore finishes

Using the JBO Metric Fine Thread NoGo gauge speeds up inspections

combined with reliable HSS core and coating

This radial overhead holder is built to deliver dependable tool seating

Dormer Pramet R520 4.50 mm CARBIDE TiN CDX STRAIGHT SHANK STUB DRILL DIN 6539 ISO Insert - RN Style Flute Configuration: 4‑flute design thatThe Dormer Pramet R520 4. 50 mm carbide stub drill with a straight shank (DIN 6539) is a versatile drilling solution designed for professionals and serious hobbyists who demand precise, repeatable holes in a range of metals. Built from premium carbide and finished with a Titanium Nitride coating, its ready for steel, aluminium, and stainless steel workpieces. The 130 point helps with self centering and reduces the push force required to start a hole,