5Pcs Countersink Drill Bit Set | High Hardness Carbon Steel for Wood & Carpentry | Strong Cutting Force with 5 - Side Chamfer Design | Includes 5 Sizes & Storage Box

Produktbeschreibung

Robust Carbon Steel Construction - These countersink drill bits are made of 45# carbon steel, delivering high hardness and strong cutting force for precise wood drilling in carpentry projects. Efficient 5-Side Chamfer Design - Drill bit set features innovative chamfer edges that automatically discharge wood chips during drilling, improving efficiency by 40% compared to standard bits. Ideal for Multi-Material Drilling - Countersink drill bits maintain excellent centering on wood, metal and plastic materials without slipping, creating neat holes in DIY and construction applications. Complete Size Selection - The 5-piece set includes 2.8mm to 4mm diameter bits with matching wrenches and spare screws, conveniently stored in labeled plastic boxes for easy identification. Industrial-Grade Toughness - Heat-treated carbon steel resists bending and breaking when used properly, with center punch guidance for vertical drilling alignment as noted in instructions.