Aluminium alloy construction Made from robust aluminium alloy, this drill bit adapter delivers long service life and wear resistance, making it a dependable tool for any woodworking project. Quick installation process Designed for user convenience, it installs and removes without additional tools, reducing setup time and boosting productivity. Compatibility with mortising machines Specifically designed for mortising machines with a part width of about 20 mm, it accommodates hole drill bits with an exposed diameter of 3843 mm, ensuring proper alignment and safe operation. Precise drilling performance Provides accurate and stable drilling that meets professional standards, delivering clean finishes on woodworking projects. Use scenarios Constructing mortise joints in furniture and cabinetry using a mortising machine with a 20 mm width. Performing precise mortising in doors, frames, and window casings to achieve clean, professional finishes. Use in production or workshop settings where quick installation and repeatable mortising across multiple pieces are beneficial.