Dormer Pramet A125 7.50 mm x 200 mm HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILL BS 328

Introducing the Dormer Pramet A125 7.50 mm x 200 mm HSS Straight Shank Extra Long Series Drill BS 328 — a purpose-built tool for deep-hole drilling where reach and reliability matter most.

Designed with a 118-degree conventional point, this drill bites in with a strong, stable entry that resists wandering and can be quickly re-ground to refresh its edge as sharpening becomes necessary.

The steam oxide finish is more than a look—it minimizes material from sticking to the cutting edge and reduces built-up debris, helping you achieve cleaner holes and less downtime spent clearing chips.

The extra-long length (200 mm) is specifically chosen for drilling very deep holes or when you need extended reach in recessed areas, long workpieces, or components with complex geometries. It maintains rigidity and straightness to keep holes true from start to finish.

Premium HSS material handles a variety of workpiece materials, including steel, aluminium, and stainless steel. This makes the A125 drill a versatile choice for mixed-material projects and job shops where versatility and performance go hand in hand.

The straight shank design simplifies tool mounting across a wide range of machines, from benchtop drills and pillar drills to CNC milling centers. It delivers solid grip, predictable runout, and compatibility with standard chucks and collets common in mechanical workshops.

BS 328-compliant, this drill meets established industry standards for tolerances and performance, giving you confidence in interchangeability with other Dormer Pramet tools in your lineup.

Ideal use cases include long-hole drilling in automotive housings, hydraulic blocks, transmission cases, and fabrication projects that require deep bore access without sacrificing hole quality.

Tips for best results: use appropriate cutting speeds and feeds for each material, maintain coolant/lubrication to minimize tool wear, and plan re-grinds to preserve the tip geometry. Regularly inspect the edge for dullness, and re-sharpen as needed to keep holes round and true.