Dormer Pramet A110 0.70 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

The Dormer Pramet A110 0.70 mm HSS ST Straight Shank Long Series Drill, DIN 340, is a precision micro-drill designed for meticulous metalworking where depth and accuracy matter. Built to deliver clean starts and dependable performance, it’s the tool you reach for when every millimeter of reach and every fraction of a second counts.

• 118-degree conventional point for a strong, self-centering entry that bites quickly into the workpiece. The geometry is easy to re-sharpen, so you can restore its cutting edge without compromising the drill’s fundamental geometry.
• Long length series engineered for deeper holes and extended reach. Ideal for recessed pockets, internal features, and applications where standard-length drills just won’t reach, while maintaining straight, true hole alignment.
• Premium HSS material delivers reliable performance across a range of metals. It’s well-suited for drilling steel, aluminum, and stainless steel, offering solid wear resistance and predictable cutting action in demanding environments.
• Straight shank design provides universal compatibility with standard drill chucks, collets, and machine tools. From handheld drills to benchtop units, this drill stays true, reducing runout and chatter for cleaner holes.
• DIN 340 compliance ensures reliable interchangeability with other DIN-spec tooling and components, making it easy to integrate into existing setups and schedules.
• Versatile application capable of performing in both manual and machine-assisted processes, making it a flexible choice for workshops that blend hand-held drilling and automated production.

Use cases span precision electronics housings, automotive components, thin-winned panels, and any project requiring a tiny-diameter hole drilled with depth. The A110’s delicate balance of a sharp entry, long reach, and durable HSS makes it a dependable option for technicians who demand consistency from micro-drilling tasks.

Practical tips: keep speeds appropriate for the material, apply steady feed, and use short pecking cycles to evacuate chips and prevent overheating. When the drill wears, re-sharpen the tip to preserve the 118-degree geometry and maintain accurate hole dimensions. This isn’t a one-and-done tool—regular maintenance ensures peak performance across countless deep-hole applications.