waltyotur 6PCS Square Hole Mortise Chisel Drill Bit Tools 1/4" 5/16" 3/8" 1/2" 9/16" 5/8"

<p>Warranty time: 1 year</p> <p>Material: HSS<br>Hardness: HRC 48~50<br>Clamping shank diameter: 19mm (Round)<br>Slotting flute diameter: 1/4 inch (6.4 mm), 5/16 inch (8 mm), 3/8 inch (9.5 mm), 1/2 inch (12.7 mm), 9/16 inch (14 mm), 5/8 Inch (16mm)</p> <p>Compatibility:<br>Suitable for woodworking construction, installation, renovation, decoration industry, etc</p> <p>Features:<br>These woodworking inlay chisels can reduce the labor intensity of construction workers, speed up construction, and reduce construction costs in the construction, installation, renovation, and decoration industries</p> <p>Note:<br>Square hole drill can not use electric drill, drill square hole need to cooperate with square hole drill (mortise and tenon) use</p> <p>Package Includes: <br>1 x 1/4-Inch(6.4mm)<br>1 x 5/16-Inch(8mm)<br>1 x 3/8 inch (9.5 mm)<br>1 x 1/2 inch (12.7 mm)<br>1 x 9/16-Inch(14mm)<br>1 x 5/8 Inch (16mm)</p>