Description【Mortise Chisel Bit Adapter】Perfect for woodworking projects, this mortising machine converter transforms your bench drill into a versatile tool capable of square hole drilling and mortise making, enhancing efficiency and precision in every cut.【Bench Drill Converter】Features-Material:Iron -Size:About 18.00X8.00X8.00cm/7.07X3.14X3.14in. -Type: 65-53 reducer sleeve. - This bench drill hole accessory is made of iron, durable, and can be utilized for a long time. - With this tool, you can convert the bench drill to a mortise machine, save your money. - With good toughness, high performance and , not easy to deform and damage. - Compact size, you can take this bench drill hole converter with you wherever you want to use it. - Easy to install and remove, you can install or remove this bench drill converter by yourself quickly. 【Square Drill Bit Adapter】Versatile Enough To Be Used In Both Small Scale And Large Scale Woodworking 【Square Hole Chisel Drilling】Designed To Work Seamlessly As An Attachment Compatible With Most Standard Bench Drills Available In The Market 【Drill Press Square Hole Adapter】Engineered To Provide Consistent Results Every Time You Use It On Different Woods 【mortise And tenon Building Blocks】Designed To Meet The Needs Of Enthusiasts And Professionals Bench Drill Attachment Adds Functionality To Existing Equipment Saving You Money