Knockout Four Piece Hinge Mortising Drill Bit Set With One Quarter Inch Hex Shank And Included Allen Wrench Built From Hella Tough High Speed Steel For Drop Dead Easy Door And Window Prep
✔️ HSS steel, 1/4 inch hex shank, self-centering, sizes 5/64 to 11/64
This kit packs four hinge mortising drill bits along with four replacement cores, making it handy for prepping doors, windows, and cabinets fast. The high-speed steel core resists heat buildup and keeps working smoothly through hardwoods without slowing down the operation.
✅ Drill bit sizes include 5/64 inch 1.98 mm, 7/64 inch 2.77 mm, 9/64 inch 3.6 mm, and 11/64 inch 4.38 mm for various hinge types✅ 1/4 inch 6.35 mm hex shaft fits standard drills with adjustable depth control for precise mortising
✅ Self-centering design minimizes walking while 135 degree pointed tip accelerates initial penetration into wood
✅ Double-sided flute geometry ejects sawdust quickly to prevent clogging during deep hinge pocket holes
✅ Includes four arbors with one quarter inch hex arbor, hex key wrench, and four spare cutting cores for long-term use
💡 Why use a self-centering hinge mortizer rather than a standard bit for precise hinge holes?
This setup saves serious time on cabinetry because the center pin kills drill wander faster than loose spade bits can ever match.
- The 135 degree split tip bites into lumber immediately so you start cuts dead-on without needing layout marks
- Hollow flute channels act like vacuums to haul chips out right away keeping the cut free of friction drag
- Depth adjustment collars let workers lock in exact plunge stops for consistent hinge clearance on every board