Dormer Pramet A413 M5 HSS ST STRAIGHT SHANK STEP 180 DEG SHORT SERIES (X2.5D) DRILL

The Dormer Pramet A413 straight-shank drill is a compact, short-series HSS drill designed to prepare counterbored clearance holes for standard metric threads. Its straight shank and versatile design make it suitable for a wide range of machines, from CNC mills to traditional drill presses, delivering reliable hole preparation in one setup.

The combination of an 118° pilot and a 180° counterbore is engineered to create the correct clearance drilling diameter and depth for standard metric threads, ensuring consistent thread engagement. A steam oxide finish helps reduce sticking and built‑up material on the cutting edge, contributing to smoother cuts and longer tool life. Made from premium high-speed steel, it performs reliably across materials such as steel, aluminium, and stainless steel.

• Engineered pilot diameter and length for standard-thread clearance: Precisely sized pilot and depth deliver the correct clearance hole for standard metric threads, promoting accurate assembly and minimizing rework.
• 118° pilot and 180° counterbore geometry: Dual-angle design enables clean counterbores and accurate hole geometry in a single operation, reducing setup time and improving fit.
• Steam oxide finish with premium HSS durability: The finish and material combination minimize friction and edge buildup, extending tool life and delivering dependable performance across CNC and conventional machines.

This drill is a practical, dependable choice for shops and hobbyists seeking consistent hole preparation for metric-thread assemblies. It supports efficient workflows, helps reduce tool changes, and delivers reliable results across a variety of common metals, making it a versatile addition to any metalworking toolkit.