Diamond Step Drill Bit Set With M10 Thread, 20mm 35mm 50mm Three Stage Hole Opener For Tile Concrete Marble Granite Stone, Fits Angle Grinder Or Drill, Chamfer Countersink Polish And Smooth Cuts
✔️ 3-stage diamond bits: 20/35/50mm, M10 shank, 2-piece kit
This 2-piece Diamond Step Drill Bit Set with M10 thread is designed for drilling and enlarging holes in hard, brittle materials like tile, marble, granite, concrete, and engineered stone. It includes two diamond-coated step bits and two shank adapters, so it fits most drills and angle grinders right out of the box. Ideal for tile work, countertop installations, and bathroom renovations.
✅ Universal M10 thread compatibility with most angle grinders and drills
✅ Three-stage size progression from 20mm to 35mm to 50mm in a single bit
✅ Premium diamond coating for long wear and fast cutting in hard materials
✅ 4-in-1 tool: drilling, reaming, chamfering, and polishing for clean edges
✅ Includes 2x diamond stepping bits and 2x shank adapters for standard drills
✅ Works across tile, ceramic, granite, concrete, and engineered stone
💡 What is a diamond step drill bit used for on tile and stone surfaces?
Diamond step bits are handy for creating clean, precise holes in hard materials without extra bit changes.
- Drills through tile, ceramic, granite, engineered stone with minimal edge chipping
- Progressive hole sizes 20mm to 50mm in a single bit
- Compatible with standard drills via M10 shank adapters
- Diamond coating provides long wear life in abrasive materials