Dormer Pramet A110 9.20 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Introducing the Dormer Pramet A110 9.20 mm HSS ST Straight Shank Long Series Drill, DIN 340 — a purpose-built twist drill engineered for precision, reach, and lasting performance in metalworking projects. With a 9.20 mm diameter, it delivers clean, accurate holes while standing up to demanding materials and longer drilling sessions.

What makes this drill stand out

• 118-degree conventional point — a strong, robust tip that starts cuts confidently and stays true. The tip is easy to re-grind, extending the life of the tool and keeping holes precisely centered over multiple reuse cycles.
• Steam oxide finish — a surface treatment that minimizes workpiece material sticking to the cutting edge, promoting smoother chip flow and helping to maintain a clean hole without built-up-edge issues.
• Long length series — designed for deep-hole drilling and applications where extra reach is essential. Reach deep into workpieces or through multiple material sections without compromising alignment or rigidity.
• Premium HSS material — high-speed steel that handles a broad range of metals, including steel, aluminium, and stainless steel, delivering reliable performance across materials in a single drill bit.
• Versatile and compatible — suitable for use in both handheld and machine applications, from drill presses to cordless drills, making it a practical choice for workshops and job sites alike.
• DIN 340 compliance — engineered to meet standard dimensional and compatibility requirements, ensuring dependable fit in standard chucks and tooling setups.

Ideal use cases and practical guidance

Use this drill when you need precise holes with deep reach in a variety of metals. It excels in:

• Deep-hole drilling in steel, aluminium, and stainless steel where conventional length drills fall short
• Through-holes, pocketing, and blind-hole work that benefit from a long-reach geometry
• Applications where a durable, re-sharpenable point reduces downtime and parts inventory

Practical tips for best results: start with a center punch to guide the bit, use steady feeds and moderate speeds to minimize heat, apply appropriate lubrication for aluminium, and re-sharpen the 118° point when you notice wandering or slower material removal. Maintain calm cutting conditions to maximize the Longevity of the drill and the integrity of your holes.

Whether upgrading your basic drilling kit or equipping a precision fabrication shop, the Dormer Pramet A110 9.20 mm HSS ST Straight Shank Long Series Drill delivers dependable performance, deep-reach capability, and solid value for everyday steel, aluminium, and stainless steel projects.