EN
M14 Thread Extended Long Body Blue Vacuum Brazed Dry Diamond Hole Saw Bit, 6/8/10/12/14mm Deep Drilling Drill Bit for M14 Angle Grinder, Vitrified Tile Marble Granite Deep Hole Perforating Tool
- Overview
- Application
- Advantages
- FAQ
- Recommended Products
Overview
Changshunda Manufacturer Intro
Changshunda Hardware Tools Factory based in Shanxi, China, specializes in customized vacuum brazed M14 thread diamond dry drill bits, and its exclusive deep-hole flagship product is the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit. We own over 12 years of independent 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 aging testing assembly lines. Every batch of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit undergoes rigorous cutting depth, sharpness and grit firmness tests before shipment to guarantee consistent stable quality.
We independently optimize the lengthened vacuum brazing grit formula and blue anti-rust coating process exclusively for this deep drill bit, balancing cutting sharpness and wear resistance. As the original manufacturer, we offer flexible OEM & ODM customization for global independent station sellers, hardware wholesalers and cross-border merchants: custom laser brand logos on drill bodies, personalized size combination sets and customized outer packaging boxes. Our factory maintains a stable monthly output of 55,000 single pieces of this extended drill bit, holds complete export certification paperwork, and provides full-cycle technical guidance plus defective product free replacement after-sales support for all bulk orders.
1. Product Specification
This upgraded M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit is a deep-hole special stone drill bit optimized for thick slab and deep penetration construction. Every single M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit adopts standard M14 external threaded shank, with a total overall length reaching 90mm, which is longer than conventional short drill bits on the market.
The M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit has a 35mm lengthened exposed diamond abrasive section, paired with a 10mm front cutting crown, supporting one-time deep drilling without repeated retraction. It offers 5 universal small diameters: 6mm, 8mm, 10mm, 12mm, 14mm, fully covering small deep hole demands for bathroom hardware, concealed pipeline outlets and embedded fixing holes on thick tiles, marble and quartz stone slabs. The whole drill body is sprayed with matte blue anti-rust baking paint, the thickened seamless steel tube structure effectively resists bending under long deep drilling loads, and the reserved chip removal gap accelerates stone powder discharge to avoid jamming during deep cutting. All versions of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit can be directly screwed onto all M14 spindle angle grinders without extra adapters, perfectly compatible with vitrified tile, ceramic, marble, granite, artificial stone and natural slate.
2. Craft & Performance
The core performance highlight of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit is the lengthened vacuum brazed exposed sand structure, specially customized for deep-hole construction scenes. Each M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit goes through high-temperature vacuum welding craft, industrial diamond grains are tightly locked on the extended working section, completely solving the problem of quick grit wear and insufficient cutting depth of ordinary short drill bits. The fully exposed long abrasive segment maintains stable sharpness in deep dry drilling, realizing water-free perforation without preparing cooling water for construction sites without water sources.
The precision CNC machined smooth M14 thread will not slip or loosen during long-time high-speed deep drilling; the blue anti-corrosion paint layer isolates stone dust and moisture to prevent metal rust. The extended body design keeps the drill vertical when drilling deep thick slabs, effectively reducing hole deflection and tile cracking risks. Below is the standardized specification table following official template:
| Item | Complete Details |
| Place of Origin | Shanxi, China |
| Brand Name | VonLonzo (Changshunda Factory Self-owned Brand) |
| Model Number | M14-LONG-BLUE-6~14 |
| Certification | EN 13236 / ISO 9001 / CE EU Safety Certification |
| Available Sizes | 6mm, 8mm, 10mm, 12mm, 14mm |
| Shank Connection Type | M14 Standard External Threaded Shank |
| Total Overall Length | 90mm / 3.54in |
| Effective Extended Working Length | 35mm / 1.38in |
| Front Cutting Crown Length | 10mm / 0.39in |
| Surface Treatment | Matte Blue Anti-rust Wear-resistant Baking Paint Coating |
| Core Manufacturing Craft | High-Temperature Vacuum Brazed Extended Exposed Diamond Grit Dry Cutting Technology |
| Matching Power Tools | All M14 Thread Shaft Angle Grinders |
| Suitable Drilling Mode | Dry Drilling (No Cooling Water Required), Optional Auxiliary Wet Drilling |
| Compatible Drilling Materials | Vitrified Tile, Ceramic, Marble, Granite, Quartz Stone, Artificial Stone, Natural Slate |
Application
The deep-hole dedicated M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit targets thick stone slab renovation and concealed pipeline construction scenarios. Small diameters (6-14mm) of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit are widely used for deep embedded mounting holes of towel racks, mirror brackets, water pipe through holes, wall socket concealed wiring holes and cabinet fixing screw holes on thick wall tiles, floor tiles and thick marble countertops.
This drill bit is an essential special tool for professional tilers, pipeline installers, cabinet fitters and renovation engineering teams. It solves the pain point that ordinary short drill bits cannot penetrate thick stone slabs at one time, suitable for indoor full-house deep hole renovation, bathroom concealed pipeline modification, stone slab wall embedded hardware installation and other professional construction work, greatly improving deep drilling efficiency and finished hole flatness.
Advantages
1. Lengthened Deep Drilling Body Design: The M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit features 90mm ultra-long overall length and 35mm extended diamond working section, realizing one-pass deep penetration for thick stone slabs without repeated drilling retraction.
2. Universal Standard M14 Thread: Unified M14 external thread fits all mainstream European and global industrial M14 angle grinders, fast screw-on installation with zero conversion adapters needed.
3. Premium Vacuum Brazed Extended Exposed Sand Craft: Ultra-strong diamond grit adhesion, stable sharp dry cutting performance, service life far longer than ordinary short electroplated drill bits on the market.
4. Blue Anti-Rust Thickened Seamless Drill Body: Thick steel tube anti-deformation structure, matte blue anti-corrosion paint avoids rust after long-term construction, gap chip removal design reduces deep drilling jamming and overheating risks.
5. Dry Cutting Water-Free Operation: The M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit supports stable dry drilling, suitable for outdoor construction sites without running water supply, enhancing field construction mobility.
6. Full Global Export Safety Certifications: Single drill bit passes EN 13236 diamond tool safety standard, ISO 9001 production audit and CE certification, fully compliant for EU commercial construction and cross-border independent station retail sales.
FAQ
Q1: Which power tools match the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit?
A: All sizes of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit adopt standard M14 external threaded shank, compatible with all global M14 spindle angle grinders; simply screw the drill tight on the grinder head before deep drilling, no conversion adapter required. It cannot work with triangle-shank electric drills or impact hammers.
Q2: Is cooling water mandatory during deep drilling work?
A: Water cooling is not required. The drill bit uses extended vacuum brazed exposed sand craft built for dry deep cutting, allowing direct drilling on thick stone without water supply. Pause 40 seconds after 2 minutes of continuous deep drilling for natural heat dissipation to extend the service life of the drill body and diamond grit.
Q3: What materials are unsuitable for this extended deep drill bit?
A: This drill bit works perfectly on vitrified tile, ceramic, marble, granite, quartz stone and slate; avoid reinforced concrete, thick glass and metal steel plates, which will cause severe abrasion and shedding of exposed diamond grit.
Q4: Can I customize logos and size sets for this drill bit?
A: Yes, Changshunda Factory supports full OEM customization of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit. You can order laser-etched brand logos on drill bodies, and combine different sizes into complete kits according to regional market demand.
Q5: How to maintain and store the drill bit after deep construction work?
A: After finishing deep drilling, brush all compacted stone dust residue off the extended diamond section of the M14 Extended Blue Vacuum Brazed Exposed Sand Dry Diamond Hole Saw Bit, air-dry fully in a ventilated space, then store it separately in a dry tool box to prevent diamond cutting head collision abrasion and blue metal body rust.
