Dormer Pramet R454 4.20 mm CARBIDE TIALN FORCE-X STEPPED SHANK STANDARD SERIES (X5D) DRILL DIN 6537 L Grooving Inserts manual threading control matters more

manual threading control matters more than heavy-duty power tapping

enhanced chip evacuation

Ultra-low runout for true rotation: Runout as tight as 0

The broad insert compatibility means you can source replacements from multiple manufacturers

Designed for precise hole enlargement and finishing

Dormer Pramet R454 4.20 mm CARBIDE TIALN FORCE-X STEPPED SHANK STANDARD SERIES (X5D) DRILL DIN 6537 L Grooving Inserts manual threading control matters moreThe Dormer Pramet R454 4. 20 mm carbide drill is a high performance cutting tool designed for precise, reliable hole drilling across a range of metals. With a 4. 20 mm diameter and a DIN 6537 L shank in the Standard Series (X5D), its ready for demanding tasks in workshops, fabrication shops, and DIY projects where consistent hole quality matters. A combination of a 140 four facet split point, a TiAlN coating, and a CTW flute design delivers self