Dormer Pramet A117 8.30 mm HSS-E STRAIGHT SHANK STUB DRILL DIN 1897

The Dormer Pramet A117 8.30 mm HSS-E Straight Shank Stub Drill DIN 1897 is a compact, high-performance drilling tool designed for metalworking tasks that demand precision and reliability. With a straight shank that fits standard chucks and fixtures (DIN 1897), this 8.30 mm drill delivers consistent starts and clean holes across a range of materials.

Equipped with a 135-degree split point for self-centering and reduced starting push force, plus a bronze oxide finish to minimize material sticking to the cutting edge, it provides improved hole quality and finish. Crafted from premium HSCO material, it’s built for hard materials including tool steel, and its heavy-duty design stands up to demanding applications.

• 135° Split Point for Self-Centering and Reduced Push Force: The geometry starts the hole precisely where the bit touches, minimizes wandering, and reduces the effort needed to begin cutting.
• Bronze Oxide Finish for Anti-Stick and Chip Flow: The bronze oxide coating helps prevent workpiece material from sticking to the edge and supports smoother chip evacuation for cleaner holes.
• Premium HSCO Material with Heavy-Duty Construction: HSS-E HSCO alloy provides durability for drilling hard materials, including tool steel, delivering long tool life and reliable performance in tough applications.

This combination of precise starting performance, anti-stick properties, and rugged construction helps you complete jobs faster with consistent hole quality. Expect fewer reworks, less downtime, and reliable results across demanding materials, making it a dependable choice for professional shops, workshops, and DIY projects alike.