Dormer Pramet R454 3.40 mm CARBIDE TIALN FORCE-X STEPPED SHANK STANDARD SERIES (X5D) DRILL DIN 6537 L CNC Storage while the 30° helix and

while the 30° helix and facet relief reduce cutting forces and rubbing

Finely ground base surface: Provides a flat

you gain reliable deep‑hole capability without sacrificing stability or precision

deliver repeatable toolholding quality

this external insert covers a wide range of threading tasks—from basic to demanding applications

Dormer Pramet R454 3.40 mm CARBIDE TIALN FORCE-X STEPPED SHANK STANDARD SERIES (X5D) DRILL DIN 6537 L CNC Storage while the 30° helix andThe Dormer Pramet R454 is a 3. 40 mm carbide drill designed for precise, high speed hole making across a range of metals. With a DIN 6537 L stepped shank, its built for reliability in both workshop and production environments, delivering consistent results from prototyping to finished parts. The 140 degree 4 facet split point helps with self centering and reduces the push force during entry, making starts easier and more accurate. 140 4Facet Split