Dormer Pramet A123 4.00 mm HSS SHEET METAL STUB DRILL DIN 1897

The Dormer Pramet A123 4.00 mm HSS Sheet Metal Stub Drill is a DIN 1897‑compliant cutting tool designed for precise holes in thin metal. Ideal for engineers, fabricators, tradespeople, and hobbyists, it delivers dependable performance when drilling sheet steel, aluminum, and stainless steel.

Crafted from premium high-speed steel, it offers durability across common sheet materials. The 4.0 mm diameter is paired with a compact stub design for tight spaces, while the 120-degree conventional point with a thin web promotes self-centering and reduces starting push. The steam oxide finish minimizes sticking to the cutting edge, and the tool is manufactured without body clearance to improve hole roundness for consistently accurate results.

• Self-centering 120° point with thin web: The 120° point and thin web help start holes dead on center and reduce the push force, minimizing wandering in thin sheets.
• Steam oxide finish for reduced sticking: The coating minimizes material buildup on the edge, promoting cleaner cuts and easier chip evacuation.
• Improved accuracy from no body clearance: Manufacturing without body clearance enhances hole roundness and delivers repeatable results in thin materials.

By delivering clean, round holes with minimal wandering and sticking, this drill helps you finish assemblies faster with less deburring and rework. Its robust HSS construction and sheet-metal‑specific geometry translate to reliable, on‑the‑job performance across common thin materials, giving you confidence on every project.