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Precision Cuts on Hard Surfaces
Semderm's 15-piece diamond hole saw drill bit set provides a versatile solution for cutting hard materials like glass, tile, porcelain, marble, granite, and stone. Crafted from upgraded carbon steel with a smooth nickel plating, these bits are built for durability and corrosion resistance, ensuring sharp, precise cuts without edge collapse. The set includes 15 different sizes, ranging from 6 mm (1/4") to 50 mm (2"), meeting a wide array of drilling demands for various projects.
Each diamond-coated bit is designed for premium quality and improved drilling efficiency, creating smooth, high-precision holes. The hollow core design features a large clearance hole that facilitates cooling water entry and chip escape, making the drilling process easier and more relaxed. For optimal performance and to extend the life of the drill bits, it is recommended to continuously add water during the drilling process for lubrication.
These diamond drill bits are imported from authorized US retailers and authorized brand partners and are available in India with all customs duties and GST included. Delivered via ExpressBox, they offer a reliable solution for DIY enthusiasts and professionals tackling tough materials. Ensure your projects are completed with precision and ease.
Engineered for Hard Materials
Semderm's diamond hole saws are specifically engineered for demanding materials like granite, marble, and porcelain. Unlike standard drill bits, their diamond coating and robust carbon steel construction ensure efficient cutting and longevity. The integrated cooling system, facilitated by large clearance holes, prevents overheating and extends the life of the bits, making them a reliable choice for tough jobs. This imported set offers a quality alternative for Indian users tackling challenging drilling tasks.
Ideal for DIY & Professionals
This set is perfect for homeowners undertaking DIY projects like installing fixtures in bathrooms or kitchens, or for professionals needing reliable bits for tile, glass, or stone work. Those who frequently work with hard surfaces and require precise, clean holes will find value. However, individuals needing bits for extremely dense concrete or metal drilling should consider specialized carbide or bi-metal sets, as these diamond bits are optimized for brittle materials.
Typical situations where Semderm Diamond Hole Saw Drill Bit Set 15 PCS (6 mm - 50 mm) | For Tile helps — illustrative scenarios, not customer reviews.
Installing new tiles in a bathroom or kitchen in humid coastal cities like Mumbai or Chennai.
Semderm's diamond bits precisely cut through ceramic and porcelain tiles for fixtures, with water lubrication preventing overheating in humid conditions. The 15-piece set ensures you have the right size for any plumbing or electrical cutout.
Creating precise holes in granite countertops or marble for plumbing in construction projects across India.
The diamond coating on these bits ensures clean, accurate holes in hard stone like granite and marble, crucial for professional installations. The set's range of sizes accommodates various pipe and fixture diameters, with water cooling maintaining bit integrity.
| Coating | Diamond |
| Base Material | Upgraded Carbon Steel |
| Recommended Surfaces | Glass, Tile, Ceramic, Porcelain, Marble, Granite, Stone, Bottles |
| Sizes Included | 6 mm (1/4"), 8 mm (5/16"), 10 mm (3/8"), 12 mm (1/2"), 14 mm (9/16"), 16 mm (5/8"), 18 mm (11/16"), 20 mm (4/5"), 22 mm (7/8"), 25 mm (1"), 25 mm (1-10"), 32 mm (1-1/5"), 35 mm (1-3/8"), 40 mm (1-3/5"), 50 mm (2") |
| Drilling Tip | Diamond |
| Cooling Method | Water Lubrication Recommended |
| Cost per use | 15 bits at ₹2,560 — ₹171 per bit |
| Shelf life after opening | N/A (Durable Tool) |
| Contraindications | Not recommended for dense metal or concrete drilling; may chip brittle materials if excessive force is used. |
| Allergens / common irritants | None |
| Feature | Semderm Diamond Hole | Others |
|---|---|---|
| Material & Coating | Upgraded carbon steel with diamond coating for hard surfaces. | Varies; some local sets use basic steel or carbide-tipped bits, less effective on glass/tile. |
| Size Range | 15 sizes from 6 mm (1/4") to 50 mm (2"). | Typically 5-10 sizes, often smaller range, e.g., 19mm-50mm. |
| Cooling & Chip Removal | Large clearance holes for water entry and chip escape. | Basic hole saws may lack efficient clearance, leading to overheating. |
| Cost per bit | 15 bits at ₹2,560 — ₹171 per bit | Local sets often cost ₹800-1500 for 5-10 bits, making per-bit cost higher. |
| Surface Suitability | Excellent for glass, tile, porcelain, granite, marble, stone. | Good for wood/plastic; limited on glass/tile unless specifically diamond-coated. |
| SKU | tkm3706 |
| GTIN | 0605500325563 |
| Brand | Semderm |
| Set Name | 15 PCS Diamond Hole Saw Drill Bit Set |
| Number of Pieces | 15 |
| Material | Carbon Steel with Nickel Plating |
| Finish Type | Nickel |
| Shank Type | Straight |
| Item Weight | 323.18 grams (11.4 ounces) |
| Package Dimensions | 5 cm x 9.6 cm x 11.6 cm |
| Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners |
About Semderm
Semderm specializes in durable, high-performance drill bits and hole saws, engineered for precision on hard materials like tile, glass, and stone.
Compliance & Legal
Use eye protection and secure workpiece when drilling. Do not exceed rated RPM. Not intended for dense metal or concrete drilling. Keep out of reach of children when not in use.
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This item:
Semderm Diamond Hole Saw Drill Bit Set 15 PCS (6 mm - 50 mm) | For Tile, Glass, Granite, Stone
2,560
This item
Semderm Diamond Hole Saw Drill Bit Set 15 PCS (6 mm - 50 mm) | For Tile, Glass, Granite, Stone
2,560
Total price:
35,460
You save 16,900 (32%) Extra3 items selected
3 items
35,460You save 16,900 (32%) Extra
| Attributes | Current |  |  |  |  |  | |
|---|---|---|---|---|---|---|---|
| Spec | |||||||
| Price | 2,560 3,790 | 25,610 37,990 | 7,290 10,580 | 2,470 3,750 | 6,380 8,130 | 6,630 9,710 | 3,730 4,160 |
| Rating | 4.10(285) | 3.80(4) | 4.30(12) | 4.40(2,066) | 4.50(340) | 4.50(11K+) | 4.70(28K+) |
| Brand Name | Semderm | Semderm | Semderm | Semderm | Eagle Abrasives | Rubbermaid | ACCUSHARP |
| Source | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail | US Retail |
| Sold By | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow | CrowCrowCrow |
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