Dormer Pramet A125 HSS Extra Length Drill Bit

Dormer Pramet A125 HSS Extra Length Drill Bit, 8 mm x 400 mm, is a high-speed steel twist drill designed for long-reach hole drilling. The A125 designation identifies its place in Dormer Pramet’s HSS drill family, while the extra-length geometry provides extended reach for deeper holes where standard-length bits fall short. Constructed from high-speed steel, this bit offers a balance of hardness and toughness to resist wear during cutting. The 8 mm diameter determines the size of the hole, and the 400 mm overall length specifies how far you can drill before needing a replacement bit or a different tool. This combination of material, size, and length makes the A125 8 mm x 400 mm a practical choice for workshops and production environments that require reliable long-reach drilling from a trusted brand.