Dormer Pramet A125 3/16 Inch x 250 mm HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILL BS 328

The Dormer Pramet A125 3/16 Inch x 250 mm HSS ST Straight Shank Extra Long Series Drill (BS 328) is engineered for deep-hole work where reach, precision, and durability matter. With a 3/16" cutting diameter and a full 250 mm flute length, this drill bit delivers reliable performance in long, challenging cuts without sacrificing rigidity or control.

• 118-degree conventional point: A robust tip that starts cuts cleanly, minimizes wandering, and remains easy to re-grind when it eventually dulls.
• Steam oxide finish: A friction-reducing coating that helps prevent workpiece material from sticking to the edge, promoting smoother drilling and longer edge life.
• Extra-long length from the Extra Long Series provides essential reach for deep holes, blind drilling, and hard-to-access workpieces often found in fabrication, maintenance, and metalworking tasks.
• Premium HSS material: High-speed steel capable of drilling across a range of metals—steel, aluminium, and stainless steel—while maintaining stable performance under heat buildup.
• Straight shank: Universally compatible with most drill chucks and machines, enabling quick tool changes and dependable grip in both manual and CNC setups.
• BS 328 specification: Ensures standard compatibility and interchangeability with common drill accessories, reducing setup surprises in multi-tool environments.
• Versatile performance: One drill bit that adapts to multiple machines and metals, making it an essential addition to workshops, fabrication shops, and maintenance departments.

Ideal for professional machinists and ambitious hobbyists alike, this drill bit helps you tackle long-reach drilling projects with confidence. For best results, use appropriate cutting fluid, maintain steady feeds, and choose speeds suitable for the material you’re penetrating to preserve edge life and finish quality. When you need dependable depth capability without compromising material compatibility, the Dormer Pramet A125 stands out as a trusted choice.