Dormer Pramet A110 1.10 mm HSS ST STRAIGHT SHANK LONG SERIES DRILL DIN 340

Dormer Pramet A110 1.10 mm HSS ST Straight Shank Long Series Drill DIN 340 is a purpose-built twist drill that combines precision with reach. Engineered for metalworking tasks that demand clean starts and deep holes, this drill is a reliable workhorse in both handheld and machine setups.

Key features that matter in real work

• 118-degree conventional point provides a strong, easy-to-regrind tip that bites quickly and maintains crisp geometry across multiple holes.
• Steam oxide finish reduces material sticking to the cutting edge, which translates to smoother chips and longer edge life in a variety of metals.
• Long series design extends reach for deeper holes and recessed work, enabling you to complete challenging assemblies without changing tools.
• Premium HSS material delivers dependable performance across steel, aluminium, and stainless steel, making it a versatile choice for mixed-material projects.
• Straight shank DIN 340 compatibility ensures secure clamping in standard chucks and holders, whether you’re drilling manually or with a drill press or CNC setup.

This 1.10 mm drill is ideal for precision micro-drilling tasks, electronics enclosures, small-fastener holes, and delicate components where accuracy and surface finish matter. The long length preserves rigidity while allowing you to reach through flanges, gussets, or other obstructing features—without sacrificing hole quality.

Why this drill stands out

Compared to standard-length drills, the A110 long-series design minimizes the need to switch tools when you face depth constraints. The combination of a robust point, anti-adhesion finish, and high-quality HSS makes it a dependable option for repeated work in a workshop or production line. Its DIN 340 shank keeps compatibility simple, so you can rely on consistent performance across different machines and tooling setups.

Practical tips for best results

• Use appropriate cutting speed and feed rates for the material you're drilling; start with conservative speeds and increase cautiously to avoid edge chipping.
• Apply a light cutting fluid or lubricant when drilling steel or stainless steel to extend edge life and improve surface finish.
• For deep holes, practice regular pecking to clear chips and prevent heat buildup that can dull the tip.
• When re-sharpening, follow the original 118-degree geometry to preserve drilling performance and reduce wandering.
• Inspect the drill after use for signs of wear; the robust tip should hold its edge longer with proper use, but regrind as needed to maintain accuracy.

Ideal for professionals and serious hobbyists alike, the Dormer Pramet A110 1.10 mm HSS Straight Shank Long Series Drill DIN 340 is a precise, durable choice for deep, clean holes in a variety of metals.