The 30° helix manages cutting forces for smoother operation and better surface finish
standard length: Ensures secure mounting and broad machine compatibility for reliable performance
enabling a single drill bit to handle multiple tasks and reduce tool changes in your workflow
By delivering consistent hole sizes and surface finishes
Shank type: Straight shank offers versatile compatibility with common tool holding systems
Dormer Pramet R453 21/64 Inch CARBIDE TIALN FORCE-X STEPPED SHANK COOLANT FEED STANDARD SERIES (X5D) DRILL DIN 6537 L Spot Drills The 30° helix manages cuttingThe Dormer Pramet R453 is a 21 64 inch carbide drill featuring a 140 four facet split point, a TiAlN coating, and a Force X stepped shank, optimized for DIN 6537 L tooling. Built for professionals and serious hobbyists alike, it delivers clean starts, reliable hole quality, and long tool life across a range of materials including steel, aluminum, and stainless. 140 fourfacet split point: Self centering action reduces wandering and lowers the push