HSS DRILL BIT 4.0MM (10PCS/PKT)

Dewalt

The DT50473‑XJ is a professional-grade HSS‑G (high-speed steel ground) drill bit, available in a 10‑pack of 4.0 mm diameter bits. Crafted to handle tough ferrous and non-ferrous metals—including stainless steel, cast iron, alloy steels, bronze, and welded seams—these bits offer high durability and precision performance for workshop and field use .

This 4.0 mm HSS‑G bit is engineered for precision drilling with a 135° ground point to enable self-centering and eliminate walking. The ground spiral flutes efficiently remove chips, while the HSS‑G grade and h8 diameter tolerance ensure tight, accurate hole sizing (within ±0.008 mm). Fully resharpenable, they’re suitable for repeated use on everything from portal drills to drill presses—perfect for professionals seeking reliable and economical metal drilling performance