Wood Drill Bit Set for Square Holes, Deep Square Holes Cutting Tools for Woodworking

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• 4/8/9.5/12.7mm Square Hole Drill Bit Steel Drill Bit for Woodworking Tools Hole Saw Mortise Chisel Material: 45 steel square hole size: 6.4/8/9.5/12.7mm Features: This chisel set is perfect for drilling holes in wood Reduce the labor intensity of construction workers, speed up construction and reduce construction costs in the construction, installation, decoration and decoration industries. 3/4 Collar Mortiser Attachment Usage: Usage is important: Square hole drill bits are mainly used in woodworking. Square hole drill bits are used for square hole milling cutters. They are specially designed for square hole drill bits and cannot be used for electric drills.