Dormer Pramet A125 3.50 mm x 160 mm HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILL BS 328

The Dormer Pramet A125 3.50 mm x 160 mm HSS straight shank drill (BS 328) is built for metalworking precision and depth. With a robust 118-degree conventional point, this drill starts cleanly, maintains true alignment, and can be re-ground for extended tool life, making it a reliable choice for demanding projects.

• Diameter and reach: 3.50 mm diameter and 160 mm overall length with a straight shank, designed for compatibility with standard drill chucks and extended-reach applications.
• Point geometry: 118° conventional point provides strong entry and minimal wandering, ideal for accurate hole starts in a variety of metals.
• Surface coating: Steam oxide finish reduces friction and helps prevent material from sticking to the cutting edge, promoting smoother holes and longer edge life.
• Material and durability: Premium HSS construction delivers reliable performance across steel, aluminum, and stainless steel, handling repeated drilling tasks with consistent results.
• Versatility in use: An extra-long series drill that excels in deep-hole scenarios or situations where reach matters, compatible with conventional drilling machines and setups.
• Standards and applicability: BS 328 designation ensures standard sizing and compatibility for common workshop requirements, making it a dependable addition to any machinist’s toolkit.

This drill is ideal for fabricators, maintenance technicians, and machine shops tackling deep-hole work, long through-holes, or components with restricted access. Use it for drilling through thick steel plates, long aluminum profiles, or stainless components where conventional-length bits fall short. Pair it with appropriate lubrication and steady feeds to manage heat and extend tool life, and clamp workpieces securely to prevent deflection on deep-hole operations.