4Pcs Countersink Deburring Drill Bit Set | 4241 High Speed Steel Chamfering Tool | Quick Burr Removal for Carbon Steel/PVC Plates | 2-20mm Hole Size Range | 4 Sizes Included

Produktbeschreibung

Quick Burr Removal - Countersink drill bits create smooth chamfers in seconds, eliminating defined edges on carbon steel, PVC, and thin iron plates without leaving burrs or rough surfaces. High-grade 4241 HSS Material - High-speed steel drill bits maintain defined cutting edges 3X longer than standard bits, withstanding repeated use on workpieces under 25-degree hardness. 4-Size Versatility - Chamfering tool set covers 2-20mm hole diameters (10mm/14mm/21mm/28mm cutting sizes) for electronics enclosures, plumbing pipes, and metal fabrication projects. Accurate Engineering - Each deburring bit features 6-12mm shank diameters and 45-85mm lengths for stable chuck gripping and controlled angled cutting at 60°-90°. Workshop Essential - Includes all 4 most-used sizes (2-5mm/5-10mm/10-15mm/15-20mm) in one set, saving 40% versus buying individual bits for DIYers and skilled machinists.