Juego de 5 brocas de chaflán con vástago hexagonal de 1/4 de pulgada, juego de brocas helicoidales cónicas de acero de alta velocidad, para perforar y chaflanar.

【Counterhead Drill Bits】Five different sizes of long, tapered twist drill bits for high drilling efficiency and rapid chip removal. 【Superior Design】Equipped with a hex wrench for easy adjustment of the chamfer position and control of drilling depth. 【Superior Quality】High-speed steel drill bits, robust and heat-resistant; hardened steel chamfer, wear-resistant and durable. 【Compatibility】Universal 1/4-inch (6.3 mm) hex shank, compatible with most handheld drills on the market. 【Applications】Primarily used for punching and chamfering PVC, rubber, and wood.