Dormer Pramet A110 3.80 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Engineered for dependable precision in metalworking, the Dormer Pramet A110 3.80 mm HSS straight shank long series drill is a compact workhorse built to tackle deep holes with ease. Crafted from premium high-speed steel, this drill bit is designed to cut cleanly through a range of materials, delivering reliable performance across everyday fabrication tasks and more demanding projects alike.

• 118-degree conventional point — a robust cutting geometry that starts easily, reduces wandering on initial contact, and remains straightforward to re-grind when the edge wears. This means quicker setup and longer tool life between sharpenings.
• Steam oxide finish — a smooth, low-friction surface that helps prevent workpiece material from sticking to the edge, promoting smoother feeds and cleaner holes, even in aluminum or mild steel.
• Long length series — designed for drilling deeper holes and reaching into constrained spaces where standard-length bits fall short, without sacrificing rigidity or flute integrity.
• Premium HSS material — excellent toughness and heat resistance, making it versatile for drilling a wide range of metals, including steel, aluminium, and stainless steel, with consistent chip ejection and reduced risk of workpiece adhesion.
• Straight shank (DIN 340) — compatibility with a wide spectrum of chucks and collets, delivering stable runout and predictable performance in handheld drills and stationary machines alike.
• Versatile application — a go-to choice for both manual and machine-based drilling, suitable for the workshop, maintenance tasks, and light production environments where dependable depth and finish matter.

This A110 drill bit shines in scenarios where reach matters: drilling deep pilot holes in steel projects, creating access for fasteners in tight assemblies, or preparing through-holes in components requiring extended bit length. Its durable HSS composition handles repeated drilling sessions without frequent bit changes, helping you keep projects moving and maintaining consistent hole quality.

Tips for best results: start with a sharp edge and a clean center mark, use appropriate lubrication or coolant for steel, and select a speed that suits the material and depth of cut to minimize heat buildup. For repeated use, periodically inspect the cutting edge and re-grind as needed to maintain a true, square tip and clean holes.