OSG Stub Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDS-3.16mm RPTECH ISO H4 tolerance: Coolant-through design

ISO H4 tolerance: Coolant-through design reduces heat and wear

Use a proper cutting fluid or light oil to reduce heat

and ISO-aligned dimensions makes it a dependable partner for machinists seeking consistent results without unnecessary guesswork

{Tolerance}: D = ±0

and speeds up drilling-to-reaming workflows by providing reliable size control and stable performance from setup to finish

OSG Stub Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDS-3.16mm RPTECH ISO H4 tolerance: Coolant-through designThe OSG Stub Drill HSS E (3. 16 mm) is a compact, high performance drill bit engineered for tough metalworking tasks. Designed for stainless steels, general steels, and aluminum, it delivers reliable, clean holes with every use, making it a trusted choice for professionals, technicians, and ambitious DIYers. The gold toned flute area visible in the image hints at a design emphasis on smooth cutting and heat management, helping you maintain consistency