Dormer Pramet A413 M4 HSS ST STRAIGHT SHANK STEP 180 DEG SHORT SERIES (X2.5D) DRILL ISO Insert - VN Style while the ISO H5 tolerance

while the ISO H5 tolerance ensures hole size accuracy within tight limits for DIN 212-B requirements

Supplied by Toolex Ltd under BS 328/4 specifications

Ideal for precision-hole tasks aligned with DIN 212-B and ISO H5 tolerances in everyday production environments

Its left-hand spiral flute paired with right-hand cutting improves chip evacuation and cutting efficiency

Applications: Suitable for flat-bottom hole drilling in steel and alloys

Dormer Pramet A413 M4 HSS ST STRAIGHT SHANK STEP 180 DEG SHORT SERIES (X2.5D) DRILL ISO Insert - VN Style while the ISO H5 toleranceThe Dormer Pramet A413 M4 HSS straight shank drill with a 180 counter bore is designed to create counterbored clearance holes for standard metric threads (for example M4). Its 118 pilot paired with the 180 counter bore delivers the correct clearance diameter and depth for standard threads, helping ensure reliable assembly on both CNC and conventional machines. Crafted from premium high speed steel, this tool handles a range of materials including