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M14 Thread Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bits, Full Sizes 6-120mm Dry Cutting Drill Bits for M14 Angle Grinder, Tile Marble Granite Quartz Stone Perforating Tool
- Overview
- Application
- Advantages
- FAQ
- Recommended Products
Overview
Changshunda Manufacturer Intro
Changshunda Hardware Tools Factory located in Shanxi, China, is a professional manufacturer specializing in vacuum brazed M14 thread diamond dry drill bits, and the core universal product is the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit. We have more than 12 years of R&D and mass production experience for diamond perforation tools, equipped with full-automatic CNC lathes, high-temperature vacuum brazing furnaces and finished product durability testing assembly lines. Every batch of the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit will carry out strict cutting sharpness and grit firmness durability tests before leaving the factory to guarantee stable consistent quality.
We independently develop the vacuum brazing exposed sand process and matte black anti-rust coating formula for this drill bit, optimizing diamond grain distribution to balance cutting sharpness and wear resistance. As the original manufacturer, we support flexible OEM & ODM customized services for global independent station sellers, hardware distributors and cross-border merchants: customizable laser brand logo marking on drill bodies, adjustable set size combinations, and personalized outer packaging boxes. Our factory has a stable monthly supply capacity of 60,000 single pieces of the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit, with complete export certification documents, providing one-stop technical guidance and defective product free replacement after-sales support for all bulk orders.
1. Product Specification
This single M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit is a universal stone drilling tool matched with all M14 thread angle grinders, covering a complete size range from tiny 6mm to large 120mm. Each M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit adopts unified structural parameters: total length 60mm, effective working cutting depth 35mm, standard M14 external thread shank for fast installation without adapters.
The M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit features matte black anti-rust coated seamless steel tube body, with reserved side chip removal slot to quickly discharge stone powder during continuous drilling, effectively avoiding drill jamming and overheating. The exposed diamond grit cutting head of every M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit is produced by high-temperature vacuum brazing process, firmly locking industrial diamond grains to support stable water-free dry drilling. Rich size options fully satisfy all renovation demands: small sizes (6-32mm) for bathroom hardware and small pipeline holes; medium sizes (35-68mm) for countertop drain holes and socket openings; large sizes (70-120mm) for sink cutouts, range hood vents and oversized pipeline perforation. This M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit is compatible with vitrified tile, ceramic, marble, granite, quartz stone, artificial stone and natural slate.
2. Craft & Performance
The core advantage of the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit lies in mature vacuum brazed exposed sand technology, which completely solves the grit shedding defect of cheap electroplated drill bits. Each M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit undergoes strict high-vacuum welding, so diamond abrasive grains will not fall off during long-term high-speed dry cutting. The matte black anti-corrosion paint layer on the drill body can resist rust and wear caused by long-term contact with stone dust and moisture, extending the service life of the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit. Smooth precision-machined M14 thread will not slip or loosen during continuous grinding work, and the side chip removal window can accelerate dust discharge to reduce drilling resistance.
Standard Specification Table
| Item | Details |
| Place of Origin | Shanxi, China |
| Brand Name | VonLonzo (Changshunda Factory Brand) |
| Model Number | M14-BLK-6~120 |
| Certification | EN 13236 / ISO 9001 / CE EU Safety Certification |
| Available Sizes | 6/8/10/12/14/16/18/20/22/25/28/30/32/35/38/40/42/45/50/55/60/65/68/70/72/75/80/85/90/95/100/110/120mm |
| Shank Type | M14 Standard External Threaded Shank |
| Single Bit Total Length | 60mm / 2.36in |
| Effective Working Cutting Depth | 35mm / 1.38in |
| Surface Treatment | Matte Black Anti-rust Baking Paint Coating |
| Core Craft | High-Temperature Vacuum Brazed Exposed Diamond Grit Dry Cutting Technology |
| Matching Power Tools | All M14 Thread Shaft Angle Grinders |
| Suitable Drilling Mode | Dry Drilling, Auxiliary Wet Drilling Optional |
| Compatible Materials | Vitrified Tile, Ceramic, Marble, Granite, Quartz Stone, Artificial Stone, Natural Slate |
Application
The full-size M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit covers all stone drilling scenarios for professional construction and household DIY. Small-sized M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit (6-32mm) is used for mounting holes of towel racks, mirrors, small water pipes and wall sockets on wall tiles and floor tiles. Medium sizes (35-68mm) are ideal for drain holes, pipeline outlets and small positioning holes on kitchen and bathroom stone countertops. Large-size drill bits from 70mm to 120mm are specially used for cutting complete sink openings, range hood ventilation holes and large pipeline through holes on thick granite and quartz stone slabs. It is the essential tool for tilers, cabinet installers, stone factory workers, decoration contractors and DIY enthusiasts, suitable for indoor renovation, stone processing factory mass production and outdoor garden stone slab perforation work.
Advantages
1. Full Complete Size Coverage: The M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit provides 33 sizes from 6mm to 120mm, one series meets all small to large aperture drilling demands, users can purchase single size or custom sets according to actual needs.
2. Universal M14 Thread Design: Every M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit adopts unified standard M14 external thread, compatible with mainstream European and global M14 spindle angle grinders, direct screw installation without conversion adapters.
3. Durable Vacuum Brazed Exposed Sand Craft: Strong diamond grit adhesion, sharp dry cutting performance, service life 3-5 times longer than ordinary electroplated drill bits on the market.
4. Matte Black Anti-Rust Thickened Drill Body: Seamless thick steel tube resists deformation under high-speed rotation, black anti-corrosion paint avoids rust after long-term construction, side chip removal window reduces drill overheating and jamming risks.
5. Dry Cutting No Water Required: The M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit supports water-free dry drilling, convenient for outdoor construction sites without water supply, improving construction mobility and efficiency.
6. Complete Global Export Safety Certifications: Each single M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit passes EN 13236 diamond tool safety standard, ISO 9001 production certification and CE certification, fully compliant for commercial construction and cross-border independent station sales.
FAQ
Q1: What power tools can match the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit?
A: The drill bit adopts standard M14 external threaded shank, compatible with all M14 spindle angle grinders sold globally, just screw the drill bit tightly on the grinder head before drilling, no conversion adapter needed. It cannot be used for triangle shank electric drills or impact hammers.
Q2: Do I need cooling water when drilling with this drill bit?
A: Water cooling is not mandatory. The M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit is specially designed for dry cutting, you can directly drill stone without water. But continuous drilling for more than 2 minutes needs to pause for 30 seconds to dissipate heat, which can extend the service life of the drill bit.
Q3: What materials are not suitable for this drill bit?
A: It fits vitrified tile, ceramic, marble, granite, quartz stone and slate; it is not recommended for reinforced concrete, thick glass and metal steel plates, which will cause severe wear and shedding of exposed diamond grit.
Q4: Can I customize the logo and set combination of this drill bit?
A: Yes, Changshunda factory supports full OEM customization of the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit. You can customize laser brand logos on drill bodies, and combine different sizes into complete sets according to market demand.
Q5: How to maintain the drill bit after construction?
A: After finishing drilling work, use a hard brush to clean stone dust residue on the M14 Black Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit, place it in a ventilated place to dry completely, then store it in a dry tool box to avoid collision abrasion and rust of the exposed diamond cutting head.
