Three In One Diamond Core Drill Bit With M10 Adapter 20mm 35mm 50mm Step Drill For Ceramic Tile Marble Granite Concrete And Wood Hole Saw Kit With Bevel Chamfer Bits Ideal For Drilling Enlarge Holes And Chamfering Fits Half Inch Chuck

3-in-1 Diamond Step Drill Bit Kit (Single) with M10 Adapter
✔️ 20/35/50 mm stepped sizes, diamond brazed, wet/dry

This three-in-one diamond drill bit consolidates 20, 35, and 50 mm steps into a single bit, enabling drilling, hole enlargement, countersinking, and chamfering in ceramic tile, marble, granite, concrete, engineered stone, and wood. Includes an M10 adapter for reliable mounting on drills or angle grinders.

✅ 3-in-1 design merges 20/35/50 mm steps for easy hole expansion
✅ Diamond brazed coating delivers long wear and clean cuts on tile and stone
✅ M10 adapter included for quick, secure chuck mounting on drills and grinders
✅ Wet or dry cutting capability with efficient chip removal
✅ Not compatible with standard 5/8-11 angle grinders

💡 What is a diamond step drill bit used for on tile and stone surfaces? Handy tool for clean holes and chamfers without swapping bits.

- Handy for drilling tile, ceramic, porcelain, granite, and concrete - Enlarges openings smoothly from piloted holes - Includes M10 adapter for drill chucks and grinders - Works wet or dry depending on material