The RUKO ULTIMATECUT 4S 102878 Countersink features a 15 mm high-speed steel construction with a cylinder shank. It is designed for precision machining and is an ideal tool for creating clean, chamfered edges in various materials. This high-quality countersink is commonly used in industrial and DIY applications. https://elecena.pl/product/28443557/ruko-102878-ultimatecut-4s-countersink-15mm-hss-cylinder-shank 2025-04-16 https://elecena.pl/product/28443557/ruko-102878-ultimatecut-4s-countersink-15mm-hss-cylinder-shank 2026-07-04