Dormer Pramet A110 1.40 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Meet the Dormer Pramet A110 1.40 mm HSS ST Straight Shank Long Series Drill (DIN 340) — a purpose-built bit designed for precision, depth, and dependable performance across a variety of materials. Whether you’re threading through steel, aluminium, or stainless steel, this drill bit is crafted to deliver clean, accurate holes with lasting edge life.

• 118° conventional point for fast, self-centering entry and minimal wandering, producing true holes with less re-drilling.
• Steam oxide finish reduces material adhesion to the cutting edge, improving chip flow and keeping the edge sharper longer in challenging workpieces.
• Long length series engineered to reach deeper holes and access tight spaces where standard bits struggle, while retaining rigidity with a straight shank.
• Premium HSS material stands up to a broad range of metals, including steel, aluminium, and stainless steel, delivering reliable performance under demanding cutting conditions.
• Straight shank offers universal compatibility with a wide array of drill chucks and machine tools, making it a versatile choice for both handheld and powered setups.
• DIN 340 standard ensures dependable interchangeability with common tooling, holders, and equipment in professional shops.
• Versatile applications ideal for manufacturing, fabrication, and workshop environments where deep drilling and consistent hole quality matter.

Who benefits most: machinists, fabricators, and DIY enthusiasts who need a single, reliable drill bit for multiple materials and deeper hole requirements. The A110 pairs efficiency with durability, helping you reduce tool changes and maintain steady progress on long drilling tasks.

Quick-use guidance: start with a light pilot hole to establish cutting alignment, apply steady, even feed pressure, and withdraw periodically to clear chips. For stainless steel or hard alloys, consider a suitable cutting fluid to prolong edge life and reduce heat buildup.