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Collet system: ER11 mini-type collet for versatile tool holding and easy
it delivers consistent hole size and a smooth finish in a range of materials
The hollow-ground bore minimizes friction during high-speed cuts
Stainless Steel & Exotics
the radius supports precise contour work
Dormer Pramet A520 4.10 mm HSS TiN ADX STRAIGHT SHANK STUB DRILL DIN 1897 ER Mini Collet Chucks Collet system: ER11 mini-type colletMeet the Dormer Pramet A520 4. 10 mm HSS TiN ADX straight shank stub drilldesigned for reliable, precise hole making across steel, aluminium and stainless steel. With a straight shank that fits standard chucks and a 4. 10 mm diameter, its built for consistent performance in everyday machining and workshop use. The 130 thinned point aids self centering and reduces push force, while the Titanium Nitride coating extends tool life for tougher drilling
