Dormer Pramet A225 1/4 Inch x 5/8 Inch HSS BS 60 DEG CENTRE DRILL BS 328 ISO Insert - SN Style this UNC 7/8 x 9

this UNC 7/8 x 9 bottoming tap delivers precise

and consistent results even when working through hardened steels

so despatch typically occurs within 24–48 hours

The straight shank ensures compatibility with multiple machining setups

DIN 8089 tolerance

Dormer Pramet A225 1/4 Inch x 5/8 Inch HSS BS 60 DEG CENTRE DRILL BS 328 ISO Insert - SN Style this UNC 7/8 x 9The Dormer Pramet A225 centre drill is a dualended, 1 4 inch diameter by 5 8 inch lengthHighSpeed Steel (HSS) tool designed to create clean centre holes in shafts for secure holding during machining. It combines a 120 degree pilot with a 60 degree center cone to accurately locate and start the hole, delivering reliable centering from the first cut. Its bright finish minimizes sticking of workpiece material to the cutting edge, helping maintain smooth