OSG Jobber Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDR-3.9mm FLH and serious hobbyists working on

and serious hobbyists working on deep cavity features and complex geometries

helping you finish parts faster with predictable results

helping you minimize tool changes and maintain steady cycle times on a busy shop floor

delivering stable performance and reduced downtime on hard materials

OSG Jobber Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDR-3.9mm FLH and serious hobbyists working onThe OSG Jobber Drill HSS E is a high performance drill bit sized at 3. 9 mm, engineered for reliable metalworking across stainless steels, general steels, and lightweight aluminum. Crafted from High Speed Steel E (HSS E), it delivers steady performance and long life, with a cutting edge geometry that promotes clean, accurate holes from the first pass. This makes it a dependable tool for both professional shops and home workshops. 3. 9 mm diameter for