Dormer Pramet A125 1.80 mm x 160 mm HSS ST STRAIGHT SHANK EXTRA LONG SERIES DRILL BS 328

The Dormer Pramet A125 1.80 mm x 160 mm HSS ST Straight Shank Extra Long Series Drill (BS 328) is built for precision reach in demanding drilling tasks. This drill bit pairs a robust 118-degree conventional point with a bright finish, delivering dependable performance across a range of materials and deep-hole applications.

Key advantages that matter when you drill

• 118° conventional point — creates a strong, self-centering start that’s easy to re-sharpen, helping you maintain accuracy from the first cut to the last.
• Bright finish — minimizes material sticking to the cutting edge, reducing heat buildup and helping chips evacuate smoothly for cleaner holes.
• Extra long length (160 mm) — designed for drilling very deep holes and situations where extended reach is essential, without sacrificing rigidity.
• Premium HSS material — versatile for drilling a variety of workpiece materials, including steel, aluminum, and stainless steel, with reliable wear resistance.
• Straight shank — compatible with a wide range of chucks and drilling machines, delivering steady performance in vertical and horizontal setups.

What you can accomplish with this drill

• Deep-hole drilling in automotive, fabrication, and manufacturing environments where tool length matters and access is limited.
• Precise pilot holes in thin-walled components before threading or tapping, thanks to the predictable start and clean cut.
• General-purpose drilling on steel, aluminum, and stainless steel projects where a long-reach drill bit is called for.

Ideal for professionals and serious tinkerers

If your work involves tight tolerances, long-reach drilling, or routine work with mixed metals, this HSS straight-shank drill from the Dormer Pramet line is a reliable companion. Its durable composition and enduring cutting geometry keep downtime low and throughput high, making it a smart choice in tool cabinets and workshop setups alike.

Practical tips for optimal results

• Clamp the workpiece securely and start with a light center-mark to guide the bit for a clean entrance.
• Use a moderate feed rate and steady, perpendicular alignment to prevent deflection, especially in longer bits.
• Apply appropriate cutting fluid or light lubrication to extend tool life and improve chip evacuation in harder materials.
• Regularly inspect the cutting edge and re-sharpen when you notice any dulling or increased effort required to cut.