EN
M14 Thread Vacuum Brazed Golden Exposed Sand Diamond Hole Saw Set, M14-5pc Dry Drill Bit Kit with Shockproof Aluminum Carry Case, 25/28/32/38/50mm Dry Cutting Bits for M14 Angle Grinder, Tile Marble Granite Stone Countertop Drilling Tool
- Overview
- Application
- Advantages
- FAQ
- Recommended Products
Overview
Changshunda Manufacturer Intro
Changshunda Hardware Tools Factory based in Shanxi, China, specializes in vacuum brazed M14 thread diamond dry drill bits, and its star medium-size product is the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case. 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 testing lines. Every batch of the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case undergoes rigorous cutting sharpness and grit firmness aging tests before shipment to guarantee consistent stable quality.
We independently optimize vacuum brazing formulas and custom aluminum box molds exclusively for this kit, balancing diamond grit 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 printed patterns on aluminum storage cases, and adjustable internal drill size combinations. Our factory maintains a stable monthly output of 45,000 sets of this kit, holds complete export certification paperwork, and provides full-cycle technical guidance plus defective product replacement after-sales support for all bulk orders.
1. Product Specification
This premium M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case is a medium-caliber stone drilling set exclusively designed to match M14 thread angle grinders widely used across Europe. The full M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case includes five mainstream medium-size golden dry drill bits: 25mm, 28mm, 32mm, 38mm, 50mm, perfectly covering mid-sized hole demands for kitchen countertops, bathroom vanity stone and wall pipe openings.
Every drill bit inside the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case features standard M14 external threaded shank, unified 60mm total length and 35mm deep exposed diamond cutting crown, supporting one-pass deep dry drilling without cooling water. The drill body adopts high-gloss golden anti-rust coating, paired with side chip removal windows to rapidly discharge stone powder and prevent drill jamming during continuous work. The customized hard aluminum storage case of the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case has separated internal slots to lock each drill firmly, its shockproof metal shell protects fragile exposed diamond grit from collision damage during site transportation, far more durable than plastic storage boxes. All bits fit vitrified tile, marble, granite, quartz and artificial stone, and can be screwed directly onto any M14 spindle angle grinder without extra adapters.
2. Craft & Performance
The core competitive strength of the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case comes from mature vacuum brazed exposed sand manufacturing technology. Each drill bit in the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case undergoes strict high-temperature vacuum welding, locking industrial diamond grains tightly on the cutting rim to eliminate the grit shedding flaw of cheap electroplated drill bits. Fully exposed diamond grit delivers sharp, stable dry cutting performance, ideal for outdoor construction sites without running water supply.
Thick seamless steel tube bodies resist deformation under high-speed rotation pressure, the golden anti-corrosion paint layer shields metal from rust caused by stone dust and moisture, while smooth precision-machined M14 threads never slip or loosen during long grinding sessions. Below is the standardized product specification table following your template:
| Item | Complete Details |
| Place of Origin | Shanxi, China |
| Brand Name | VonLonzo (Changshunda Factory Original Brand) |
| Model Number | M14-5PC-25/28/32/38/50 |
| Certification | EN 13236 / ISO 9001 / CE EU Safety Certification |
| Set Contents | 5 Pcs Golden Exposed Sand M14 Dry Diamond Drill Bits (25,28,32,38,50mm) + Shockproof Aluminum Storage Case |
| Shank Connection Type | M14 Standard External Threaded Shank |
| Single Drill Total Length | 60mm / 2.36in |
| Effective Dry Cutting Depth | 35mm / 1.37in |
| Surface Treatment | High-gloss Golden Anti-rust Baking Paint Coating |
| Core Manufacturing 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 (No Water Required), Optional Auxiliary Wet Drilling |
| Compatible Drilling Materials | Vitrified Tile, Ceramic, Marble, Granite, Quartz Stone, Artificial Stone, Natural Slate |
Application
The medium-aperture focused M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case targets professional countertop processing and home renovation jobs. The smaller sizes (25mm,28mm,32mm) inside the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case are used for drainage holes, pipe outlets and hardware positioning holes on kitchen and bathroom stone surfaces; 38mm and 50mm drill bits handle medium sink cutouts, range hood vent holes and wall socket openings.
This kit is a must-have tool for professional tilers, cabinet installers, stone factory workers and renovation contractors. It suits indoor kitchen counter sink punching, vanity stone modification, outdoor garden slab hole processing and large-scale stone decoration projects, drastically boosting efficiency for medium-caliber dry drilling work.
Advantages
1. Targeted Medium-Size Matching: The M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case collects the most commonly used medium hole sizes for countertop fabrication, one full set covers all mid-aperture drilling needs without purchasing separate single drill bits.
2. Universal Standard M14 Thread: Uniform M14 thread fits all mainstream European and global industrial angle grinders, fast screw-on installation with zero extra adapters needed.
3. Premium Vacuum Brazed Exposed Sand Craft: Ultra-strong diamond grit adhesion delivers sharp dry cutting, service life 3–5 times longer than ordinary electroplated drill bit sets on the market.
4. Drop-Proof Aluminum Storage Case: Unlike fragile plastic boxes, the matched aluminum case is wear-resistant, waterproof and shockproof; independent slots stop diamond grit from colliding and falling off during carrying.
5. Golden Anti-Rust Thickened Drill Body: Seamless thick steel tube plus glossy golden anti-corrosion paint prevents bending and rust after long-term construction; side chip removal windows reduce overheating and jamming risks.
6. Full Global Export Safety Certifications: The complete kit 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 sales.
FAQ
Q1: Which power tools are compatible with the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case?
A: All drill bits inside the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case adopt standard M14 external threaded shank, compatible with all global M14 spindle angle grinders; simply screw the drill tight on the grinder head before drilling, no conversion adapter required. It cannot work with triangle-shank electric drills or impact hammers.
Q2: Is cooling water mandatory during drilling?
A: Water cooling is not required. The drill bits of the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case use vacuum brazed exposed sand craft built for dry cutting, allowing direct stone drilling without water supply. Pause 30 seconds after 2 minutes of continuous drilling for heat dissipation to extend drill service life.
Q3: What materials are unsuitable for this drill set?
A: This kit 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 combinations for this kit?
A: Yes, Changshunda Factory supports full OEM customization of the M14-5pc Golden Exposed Sand Drill Kit with Aluminum Storage Case. You can order laser-etched brand logos on drill bodies, custom store branding printed on aluminum storage boxes, and adjust internal drill size collocation to match your regional market demand.
Q5: How to maintain and store drill bits after construction work?
A: After drilling, brush all stone dust residue off each drill bit, air-dry fully in a ventilated space, then place every drill back into its dedicated slot inside the matched aluminum storage case, seal the box tightly and store in a dry environment to prevent diamond cutting head collision abrasion and metal rust.
