1. Firm Diamond Grit & Greatly Extended Service Life
1.Manufactured via high-temperature vacuum brazing: alloy solder fuses diamond grains deeply onto the steel substrate for three-dimensional anchoring. Unlike electroplated hole saws that only attach grit superficially, the diamonds hardly fall off under dry cutting, high-speed rotation or lateral force.
2.Its durability is 3 to 5 times that of ordinary electroplated diamond hole saws. A single piece can drill 50–100 consecutive holes on fully vitrified tiles, lowering replacement frequency and overall long-term costs.
3.The diamond grains feature high exposure height and maintain lasting self-sharpening performance without rapid dulling, staying sharp even after prolonged use.

2. Supports Dry Drilling for Convenient Construction
1.Most models contain built-in solid cooling wax, which melts automatically to dissipate heat as temperature rises during drilling. No continuous water cooling is required, saving trouble of carrying buckets for outdoor, construction site or home installation work.
2.Compatible with both dry and wet cutting. Dry drilling produces no splashing wastewater, keeping stone and tile surfaces clean and cutting down post-work cleaning steps.
3.Excellent heat dissipation prevents bit burnout and annealing damage during long continuous drilling.

3. Fast, Labor-Saving & Efficient Drilling
1.Evenly distributed highly exposed diamond grains reduce cutting resistance, delivering superior penetration on ultra-hard materials such as full-body ceramic tiles, sintered stone slabs, granite and quartz stone, far outperforming electroplated counterparts in drilling speed for equal material thickness.
2.Fits electric drills, cordless drills and angle grinders. Only light pressure is needed for penetration, easy for novice operators and reducing tool wear and physical fatigue.
3.Flute slots on the barrel quickly expel dust and debris to avoid clogging or jamming.

4. Smooth Hole Edges with Minimal Chipping & No Tile Cracking
1.Stable cutting with low vibration ensures smooth, rounded hole rims on fragile hard materials including full-body tiles, sintered slabs, glass and thin marble, nearly eliminating edge chipping, spalling and cracks.
2.One-shot forming for sink drain holes, faucet holes and electrical box cutouts with no secondary edge grinding required, delivering neat finished holes and reducing rework and material waste.
3.Anti-slip positioning for 45° angled drilling prevents wandering, producing precise, perfectly round holes.

5. Wide Material Compatibility for Multi-Scenario Use
Capable of processing nearly all hard brittle materials widely used in decoration:
•Tiles: vitrified tiles, full-body porcelain tiles, antique tiles, large sintered stone slabs
•Stones: marble, granite, quartz stone, artificial stone, cobblestone
•Others: glass brick, tempered glass, ceramic, thin concrete, microcrystalline jade Replaces multiple specialized drill bits and reduces tool carrying loads.

6. Stable & Safe, Compatible with Various Power Tools
1.Thickened high-carbon steel barrel offers high structural strength, resisting deformation and fracture under high-speed rotation to avoid flying debris hazards.
2.Complete shank options: triangular shank, hex shank and M14 threaded shank, compatible with hand electric drills, cordless drills, angle grinders and bench drills for broad versatility.
3.Vacuum brazing eliminates air bubbles and cold solder joints, preventing partial delamination under high-speed heavy loads for higher construction safety.

7. Lower Comprehensive Long-Term Cost
Though priced higher upfront than cheap electroplated hole saws, their multi-fold service life cuts frequent purchases and downtime from repeated bit replacement, delivering outstanding cost performance for decorators and large-scale engineering projects.
Brief Comparative Summary
•Electroplated hole saws: Low price, prone to grit loss, short lifespan, mandatory water cooling, high risk of tile chipping
•Sintered hole saws: Durable yet slow cutting, severe heat buildup during dry drilling, rough hole edges
•Brazed hole saws: Balanced sharpness and longevity, dry-cut capable, minimal chipping, wide compatibility — the top choice for tile and stone hole cutting