and proven Bison quality deliver reliable performance day after day
Secure BS 328/4 taper shank mounting: Standard taper fit ensures stable alignment in compatible machine tools and tool holders
it delivers consistent hole sizes to ISO H4 tolerance and a smooth bore surface
helping prevent clogging and enabling steady material removal even in tougher materials
Left-hand spiral flute with right-hand cutting for efficient chip control: The opposite-flute geometry helps evacuate chips smoothly and supports a clean
OSG Stub Drill HSS-E - For Stainless Steels, Steels and Ali - EX-SUS-GDS-5.19mm Tapping Chucks and proven Bison quality deliverThe OSG Stub Drill HSS E is a compact, high performance drill bit built for challenging materials. Crafted from high speed steel grade E, it delivers durability and precise hole quality when drilling stainless steels, steels, and aluminum. With a 5. 19 mm diameter and a stub design, it offers excellent rigidity and control in tight spaces, making it a reliable choice for engineers, fabricators, tradespeople, and DIY enthusiasts alike. Its optimized