Premium Sintered Diamond Engraving Bit for Granite & Stone - Long Life, High-Speed Precision Carving Tools (3-20mm)

• Customization: Available
• Customized: Non-Customized
• Standard: API
• Length: Jobber-length
• Type: Core Drill Bit
• Material: Diamond
• Usage: Masonry Drilling, Stone
• Transport Package: Carton
• Specification: 1/4" ~ 2"
• Trademark: ODT or OEM
• Origin: China
• HS Code: 8501
• Production Capacity: 300000/Day

Product Description

Product Description

Engineered for industrial stone engraving, the SSD sintered diamond bit utilizes vacuum brazing technology to bond diamond grit (40/50 mesh) onto a high-carbon steel core, achieving 5x longer lifespan compared to electroplated bits. Its unique spiral flute design enhances debris removal and heat dissipation, enabling continuous operation at 15,000 RPM without thermal damage. Ideal for granite memorials, marble countertop engravings, and architectural stone detailing, this tool maintains sharpness even under heavy loads, producing clean edges with ±0.1mm precision. Compatible with CNC routers and handheld engravers

Specification

_{Key Product Features}

_{Sintered Diamond Matrix: 3.5ct/cm² diamond density ensures 300+ hours of engraving on granite .
Multi-Material Capacity: Effective on granite, marble, sintered stone, and engineered quartz .
Anti-Clog Design: Spiral grooves reduce friction by 40%, minimizing dust accumulation .
Heat-Resistant Core: Chrome-plated 65Mn steel withstands 500°C operating temperatures .
Universal Shank: 1/4" hex shank fits.
Zero-Tear Edge: Precision diamond alignment prevents chipping on brittle materials .}

Specifications and Dimensions

Diamond Grit: 40/50 mesh (aggressive cutting) / 80/100 mesh (fine finish)
Shank Type: 1/4" Hexagonal
Working Diameter: 3mm, 6mm, 10mm, 15mm, 20mm (±0.05mm)
Max RPM: 15,000 (dry) / 8,000 (wet)
Depth Capacity: 50mm (granite), 80mm (marble)
Certifications: CE, ISO9001, RoHS

Item No.	Diamond Grit Size	Threaded Interface
5mm-150mm (Customizable)	6~18mm (46#) 20mm and above (36#)	M14
This product is suitable for making holes in hard materials such as marble, concrete, granite slabs, and full porcelain tiles. It is sharp, durable, with a clean cut, and easy to use.

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

Why Choose Us?

Other Products

OEM/ODM capabilities
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Turnkey project solutions

Packaging & Shipping

FAQ

Q: Can it drill through 10mm thick tempered glass?
A: Yes, use water cooling and maintain 800-1200 RPM for best results.

Q: How to attach the vacuum base?
A: Press the base firmly on flat surfaces – the suction cup self-seals in 3 seconds.

Q: Is water cooling mandatory?
A: Required for glass and reinforced concrete; optional for tiles and marble.

Q: What's the diamond grit size?
A: 50/60 grit for fast cutting, 80/100 grit for smooth finishes.

Q: Compatible with hammer drills?
A: Only for rotary mode. Hammer function will damage the diamonds.