The Dormer Pramet A125 15/64 Inch x 200 mm HSS ST Straight Shank Extra Long Series Drill (BS 328) is built for deep-hole challenge and precise results in a wide range of materials. This is not a one-trick bit—it’s a purposefully engineered twist drill designed to extend reach without sacrificing edge quality.

• 118° conventional point delivers a strong, self-centering start that resists wandering and remains easy to re-grind when sharpening is needed.
• Steam oxide finish minimizes built-up material on the cutting edge, helping maintain smooth drilling in tough metals and reducing chatter during entry.
• Extra-long length in the A125 series provides the reach required for deep holes and applications where standard drills won’t suffice, while preserving rigid straight-line guidance with a sturdy straight shank.
• Premium HSS material stands up to steel, aluminum, and stainless steel, offering reliable performance across common workshop tasks without frequent tool changes.
• BS 328 compliance ensures compatibility with British-standard twist drill dimensions and consistent threading/length expectations, making it a dependable choice for shops relying on standardized tooling.
• Versatility across machines—this drill is suitable for use in hand drills, drill presses, and CNC equipment, making it a go-to choice for fabrication, maintenance, and production environments.

Ideal for fabricators, workshop technicians, and engineers who routinely drill deep holes in a variety of materials, the A125 15/64 x 200 mm drill balances reach, durability, and precision. The long flute length and robust edge enable clean starts and controlled chip evacuation, helping you complete through-holes, clearance holes, or deep pilot holes with fewer Tool-Driven interruptions.

Practical tips for best results: use appropriate cutting speeds and feeds for the material, apply a light cutting oil when drilling steel or stainless steel, and pause to cool if drilling becomes sluggish or the edge shows heat discoloration. Regularly re-sharpen the 118° point to preserve starting accuracy and edge life, and inspect the straight shank for any runout or deformation before mounting in precision gear.