Description: [Mortising attachment for drill press] Square hole drill adapter is fit for benchtop drill presses and hand drill clamp diameter ranging between 38 to 55mm/1.5 to 2.2inch,allowing for effortless installation and use.Your ultimate solution for enhancing the versatility of your table drill and hand drill.(pls kindly note,it only works benchtop drill presses hand drill that with clamp,not for all ) [Use Support Bracket]Square Hole Drill Adapter is for table drill and hand drill.Square Hole Drill Adapter is great for,furniture making,and other related industries. [Bench Drill Mortise Accessories]Mortise converter is easy to install and remove,you can quickly install or remove yourself,and effort. [Premium Material]Square hole drill fixed bracket is made of stainless steel casting,sturdy.If you're looking for a versatile and efficient way to quickly install or disassemble drill accessories,then look no further than the Square Hole Drill Adapter! Note:If stored in a humid environment for a long time,it may to some for surface rusting,which can be improved by simply wiping some protective oil. [Effective]With its fine design,the adapter ensures accurate and smooth drilling operations.  Specifications: Material:Stainless Steel Size: Adapter: 15.6cm/6.14inch Handle: 12.4cm/4.88inch Note: Please allow slightly errors due to manual measurement and different monitors. Package included: 1 Square Hole Drill Adapter 1 Handle