Diamond Step Drill Bit Set | 20-50mm | Tile, Stone & Marble Edge Trimming Tool

Save $23.95 on 10 units
$21.56
per unit
Save $89.81 on 25 units
$20.36
per unit
Save $215.55 on 50 units
$19.64
per unit
Save $479.00 on 100 units
$19.16
per unit
Click a tier to set quantity • Discount applies automatically at checkout
Achieve clean, professional bevels on stone, tile, and marble with this 20-50mm brazing step drill bit. Engineered for angle grinders, this diamond chamfer router bit creates precise, consistent edge ...
Good to know
Questions about this product
- What tool and materials does this step bit work with?
- It's made for angle grinders and cuts tile, stone, marble, granite, and porcelain. The brazed diamond segments handle those hard materials in a single pass. Check the listing for the arbor that matches your grinder before fitting it.
- What jobs is this bit best at?
- It trims and bevels edges on stone, tile, and marble, like countertop and backsplash edges. The 20-50mm step shape also lets you open or enlarge holes. One bit creates several hole sizes and bevel widths, so you swap tools less.
- Can I cut dry, or do I need water?
- You can run it dry or wet, but water cooling is recommended on masonry. Water keeps heat down, reduces dust, and helps the diamond segments last longer. Keep the speed in the range your grinder allows for safe, controlled cuts.
Tool Accessories spec sheet (PDF)
Get a one-page sheet with full description, specifications, technical details, FAQs, price & SKU - handy to save, print, or share.
Not sure which one?
Compare tool accessories

Diamond Step Drill Bit Set | 20-50mm | Tile, Stone & Marble Edge Trimming Tool

Diamond Core Drill Bit Set | M14 Thread for Tile, Granite & Marble | Dry Cutting Hole Saw

Diamond Core Drill Bit | M14 Thread for Granite, Marble & Tile | Dry Vacuum Brazed Masonry Hole Saw

Diamond Core Drill Bit Set | Wet Cutting for Granite & Marble | 6-65mm Hole Saw

Diamond Core Drill Bit Set | 6mm M14 for Granite, Marble & Tile | 2-Piece Hole Saw Kit

Diamond Core Drill Bit | M10 Thread | 6-75mm Range | For Concrete, Tile & Brick

Diamond Core Drill Bit | M14 Thread for Porcelain, Tile & Stone | Premium Hole Saw

Diamond Core Drill Bit Set | M14 Thread for Tile & Stone | 6-115mm Diameter Range

Diamond Drill Bit Set | 12-Piece Hole Saw Kit for Glass, Tile & Stone | 6-35mm
Compare options
More Tool Accessories
Explore the range
Popular in Tools & Hardware
Complete the set



































