【Square Hole Mortising Drill Bit Mortising Drill Bit】: Square hole mortising drill bit, mortising drill bit, mortising gouge drilling tool, mortising drill bit woodworking for bench logs. Articulated punch, this bench hole drilling tool is made of metal and can be used for a long time. The woodworking tenoning machine is designed to provide fast and accurate results without compromising quality or precision. 【Wide Range of Applications】: This multifunctional milling attachment transforms a drill into a precision woodworking milling machine, which can be used not only for rounding and cutting wood cones, but also for hollowing, sanding the interior, drilling metal, etc. 【Drilling Aid - Mobile Drill Stand】: The bench drill converter / bench drill stand is exquisite in workmanship, high performance and long service life. Mainly used for woodworking aspects. 5 Reducing Sleeves (40/53/55/58/60mm). 【Drill Stand】: With this tool, you can convert your benchtop drill press into a tenoning