and precision ISO H5 tolerance supports dependable
41 mm diameter and straight shank
reducing guesswork in inspections
The reamer uses a left-hand spiral flute with right-hand cutting and coolant through the shank to help flush chips and maintain consistent cutting conditions
large-diameter workholding
Dormer Pramet A520 5.50 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897 Instruments and precision ISO H5 toleranceDesigned for engineers, machinists, and DIY enthusiasts, the Dormer Pramet A520 5. 50 mm HSS TiN ADX Straight Shank Stub Drill is a reliable, general purpose drill for metalworking. It uses a DIN 1897 straight shank and a 5. 50 mm diameter to deliver consistent, high quality holes in steel, aluminium, and stainless steel. With a 130 thinned point for self centering, a Titanium Nitride coating for longer life, and convex cutting edges for efficient