EN
M14 Thread Vacuum Brazed Red Exposed Sand Diamond Hole Saw Set, M14-5pc Dry Drill Bit Kit with Shockproof Aluminum Storage Case, 20/35/40/45/68mm Dry Cutting Bits for M14 Angle Grinder, Tile Marble Granite Stone Drilling Tool
- Overview
- Application
- Advantages
- FAQ
- Recommended Products
Overview
Changshunda Manufacturer Intro
Changshunda Hardware Tools Factory, located in Shanxi China, is a professional manufacturer focusing on vacuum brazed M14 thread diamond dry drill bits, and the core large-size product is the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case. 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 M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case 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 customized aluminum box packaging mold for this kit, optimizing diamond grain distribution formula 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, personalized printed patterns on aluminum storage cases, and adjustable size collocation inside the set. Our factory has a stable monthly supply capacity of 45,000 sets of this kit, with complete export certification documents, providing one-stop technical guidance and defective product replacement after-sales support for all bulk orders.
1. Product Specification
This professional M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case is a large-caliber stone drilling tool set exclusively matched with M14 angle grinders. The complete M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case contains 5 mainstream large-size red exposed sand drill bits: 20mm, 35mm, 40mm, 45mm, 68mm, fully covering sink openings, ventilation holes and lamp hole processing demands for kitchen and bathroom renovation.
Every drill bit inside the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case adopts standard M14 external threaded shank, unified total length of 60mm and 35mm deep exposed diamond cutting crown, supporting one-time deep dry perforation without cooling water. The whole drill body is sprayed with bright red anti-rust baking paint, with side chip removal windows to quickly discharge stone dust and avoid drill jamming. The matched customized aluminum storage case of the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case has independent fixed inner slots for each drill bit, shockproof and drop-resistant metal shell effectively protects the fragile exposed diamond grit during transportation and on-site carrying, and is more durable than plastic storage boxes. All drill bits are suitable for hard stone materials such as vitrified tile, marble and granite, and can be directly installed on all M14 thread angle grinders without conversion adapters.
2. Craft & Performance
The core performance advantage of the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case lies in mature vacuum brazed exposed sand technology. Each drill bit of the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case goes through high-temperature vacuum welding process, industrial diamond abrasive grains are tightly locked on the cutting edge, completely solving the easy grit shedding defect of cheap electroplated drill bits. The fully exposed sand layout realizes stable water-free dry cutting, which is very suitable for outdoor construction sites without water supply.
The thickened seamless steel tube drill body of the kit resists bending under high-speed rotation pressure, the red anti-corrosion paint layer prevents rust caused by long-term contact with stone dust and moisture, and the smooth M14 threaded shank will not loosen or slip during long-time grinding work. Below is the complete standardized parameter table of the product:
| Item | Complete Details |
| Place of Origin | Shanxi, China |
| Brand Name | VonLonzo (Changshunda Factory Self-owned Brand) |
| Model Number | M14-5PC-20/35/40/45/68 |
| Certification | EN 13236 / ISO 9001 / CE EU Safety Certification |
| Set Contents | 5 Pcs Red Exposed Sand M14 Dry Diamond Drill Bits (20mm,35mm,40mm,45mm,68mm) + Custom 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 | Bright Red Anti-rust Baking Paint Coating |
| Core Manufacturing Craft | High-Temperature Vacuum Brazed Exposed Diamond Grit Technology |
| Matching Power Tools | All M14 Thread Shaft Angle Grinders |
| Suitable Drilling Mode | Dry Drilling, Auxiliary Wet Drilling Optional |
| Compatible Drilling Materials | Vitrified Tile, Ceramic, Marble, Granite, Quartz Stone, Artificial Stone, Natural Slate |
Application
The large-caliber focused M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case targets professional stone processing and kitchen & bathroom renovation scenes. The 20mm drill bit inside the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case is used for small drainage holes and hardware positioning holes on countertops; 35mm,40mm,45mm sizes fit socket openings and medium pipeline holes; the largest 68mm drill bit is specially designed for cutting complete sink holes and range hood ventilation holes on marble, quartz and granite countertops.
This kit is the essential tool for professional tilers, cabinet installers, stone processing factory workers and renovation engineering teams. It can be used for indoor kitchen counter sink punching, bathroom stone countertop modification, outdoor garden stone slab hole processing, and large-scale stone decoration construction, greatly improving the efficiency of large-aperture dry drilling operations.
Advantages
1. Targeted Large-Caliber Size Matching: The M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case covers the most frequently used large hole sizes for countertop processing, one set meets all sink and vent hole demands, no need to buy single large drill bits separately.
2. Standard M14 Thread Universal Design: Every drill bit adopts unified M14 thread, compatible with mainstream European and global industrial angle grinders, direct screw installation without extra adapters.
3. Premium Vacuum Brazed Exposed Sand Craft: Firm diamond grit bonding, sharp dry cutting performance, service life 3-5 times longer than ordinary electroplated drill bits on the market.
4. Shockproof Aluminum Storage Case: Compared with fragile plastic boxes, the matched aluminum case of the kit is drop-resistant, wear-resistant and waterproof, independent slots fix drill bits to prevent diamond grit collision damage during carrying.
5. Anti-Rust Red Thickened Drill Body: Seamless thick steel tube + red anti-corrosion paint avoids deformation and rust during long-term construction, side chip removal windows reduce drill jamming and overheating risks.
6. Complete Global Export Safety Certifications: The whole set passes EN 13236 diamond tool safety standard, ISO 9001 production management certification and CE certification, fully compliant for commercial construction and cross-border sales in European markets.
FAQ
Q1: What power tools match the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case?
A: All drill bits inside the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case adopt standard M14 external threaded shank, which is 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 electric drills with triangle shank chucks or impact hammers.
Q2: Do I need cooling water when drilling with this kit?
A: Water cooling is not mandatory. The drill bits of the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case adopt vacuum brazed exposed sand technology 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 each drill bit.
Q3: What materials are not suitable for this drill set?
A: The kit 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 logo and size combination of this kit?
A: Yes, Changshunda factory supports full OEM customization of the M14-5pc Red Exposed Sand Dry Drill Kit with Aluminum Storage Case. You can customize laser brand logos on drill bodies, print store logos on aluminum storage boxes, and adjust the drill size matching inside the set according to market demand.
Q5: How to maintain and store the drill bits after construction?
A: After finishing drilling work, use a hard brush to clean stone dust residue on each drill bit, place it in a ventilated place to dry completely, then put each drill bit back into the independent fixed slot of the matched aluminum storage case, close the box tightly and store it in a dry environment, which can effectively avoid collision abrasion and rust of the exposed diamond cutting head.
