Diamond step drill bit — vacuumbrazed diamond cutting head Available step diameters: 20 mm, 35 mm, 50 mm Total length: 70 mm Thread options: M10 or M14 Package: 1 piece Why this tool matters Faster, longerlasting cuts: Vacuumbrazed construction and diamond concentration deliver a quicker cut rate while extending tool life compared with nondiamond or lowerconcentration bits. Precise hole expansion and chamfering: The stepped profile and integrated chamfer let you enlarge existing holes, finish drilled openings and create smooth chamfered edges in a single pass. Reduces cracking risk: Designed to minimize tension on standard and largeformat tiles and stone during drilling, lowering the chance of cracks or breakouts. Key features and performance Vacuum brazed diamond surface for consistent cutting performance and durability. Stepped design covers three common diameters (choose 20 mm, 35 mm or 50 mm) while keeping the same 70 mm overall length. Threaded shank choices M10 or M14 to match compatible tools — select the thread type required for your drill or grinder. Suitable for use on tile and stone surfaces where controlled hole enlargement and chamfering are needed. Practical applications Tile installation: Expand or finish holes for anchors, pipes or fixtures in ceramic and porcelain tile without spreading stress that can crack largeformat panels. Stone countertops: Carefully widen or chamfer holes around sink fittings and plumbing penetrations in natural stone to create smooth, professional edges. and remodeling: Remove uneven or chipped edges after cutting tile or stone, and clean up holes for electrical or plumbing fittings. What to expect in use Onepiece supply per package; pick the step diameter and thread type required for your tool. Delivers cleaner holes and chamfers, fewer edge chips, and longer service life compared with nondiamond step bits. Compatibility reminder Choose M10 or M14 thread based on the tool you will mount the bit to. The bit is intended for drilling and finishing tile and stone surfaces; select the appropriate diameter (20, 35, or 50 mm) for your application.