Dormer Pramet A110 12.25 mm HSS Straight Shank Long Series Drill DIN 340 is built for serious metalworking jobs where reach and reliability matter. This long-series drill delivers consistent performance in deep-hole applications, making it a dependable choice for both on-hand and machine drilling setups.

Featuring a 118° conventional point, it bites cleanly into workpieces and remains easy to re-sharpen, helping you maintain precision without frequent tool changes. The steam oxide finish minimizes material sticking to the cutting edge, promoting smoother chip evacuation and steadier hole quality, even in tougher metals.

The long length series design provides increased reach for drilling deeper holes or accessing recessed areas where standard drills can’t reach. Paired with a premium HSS (high-speed steel) material, this drill handles a wide range of metals—from steel and stainless steel to aluminum—with dependable performance and long tool life.

Designed as a versatile, straight shank drill, it fits securely in most chucks and supports both handheld drills and machining centers. The DIN 340 specification ensures consistent geometry and interchangeability with other standard tools in your workshop, so you can rely on predictable hole sizes and repeatable results.

Ideal use scenarios include:

• Deep-hole drilling in thick steel plates, aluminum sections, or fabricated frames
• Fabrication tasks where extended reach minimizes tool changes and setup time
• Automatic or manual drilling in automotive components, enclosures, and structural parts
• Precise pilot holes before tapping or reaming in metal assemblies

Tips for optimal results: keep the cutting edge sharp and maintain proper coolant flow to reduce heat buildup. Start with a light initial cut to establish accuracy, then feed steadily to achieve clean, round holes. When drilling stainless steel or hard alloys, consider slower speeds and a pecking approach to prevent workpiece work hardening and to extend drill life.

With the Dormer Pramet A110 12.25 mm drill in your toolkit, you gain a purpose-driven solution for deep drilling that doesn’t force you to compromise on quality or versatility. This is the tool you reach for when you need a reliable long-reach drill that slides into your existing workflow without fuss.