Ensemble de 6 forets à bois à trou carré, burins creux en acier, ensemble d'outils pour le travail du bois, forets à trou carré, forets à mortaiser

【Superior Quality】This square drill bit is made of high-speed steel, making it sturdy, durable, and highly efficient. The heat-treated cutting edge is high in hardness, providing a continuous cutting edge and fast cutting speed. 【High-Quality Design】The drill bit guide design effectively prevents tearing during initial use. No misalignment; the saw blade automatically ejects from both sides of the top of the hole to prevent the drill bit from jamming. 【Effortless and Precise】Reduces the workload of construction workers, speeds up construction, and lowers construction costs for building, installation, renovation, and decoration. 【Wide Range of Applications】Suitable for drilling square holes in wood using mortising machines or mortising attachments. Square hole drill bits are primarily for woodworking. This drill bit cannot be used with electric drills or bench drills. 【Wide Applications】This square hole drill bit is suitable for wood, including MDF, plastics, particleboard, channel steel, pine, basswood, etc. Note: Not suitable for processing metal, glass, concrete, gypsum board, etc. 【Scientific Formula, Multiple Sizes】6 pieces per pack, with different slot diameters to meet your various needs. Easily drill precise holes. Each drill bit is packaged in an easy-to-clean plastic box. Features: Condition: Brand new, excellent quality. Material: Steel. Color: Silver. Quantity: 6 pieces.