EN
Van Lonzo M14 Golden Pagoda Hole Expander, Vacuum Brazed 3-Step Diamond Step Grinding Bit with M14 Thread Shank, Dry Hole Chamfering & Enlarging Tool for Angle Grinder, Marble Quartz Tile Stone Trimming & Hole Widening
- Overview
- Application
- Advantages
- FAQ
- Recommended Products
Overview
Changshunda Manufacturer Intro
Changshunda Factory is located in Jishan County, Yuncheng City, Shanxi Province, China, professional manufacturer specializing in vacuum brazed diamond drilling & cutting tools. We have complete production lines and strict QC inspection system, support OEM & ODM wholesale customization: custom drill dimension, body color, private logo and package design for global cross-border sellers and hardware importers. Our diamond tools are exported to Europe, Southeast Asia, Middle East and North America all over the world.
1. Product Specification
This M14 Golden Pagoda Hole Expander is a multi-layer stepped vacuum brazed diamond grinding tool exclusively designed for angle grinders equipped with M14 spindle thread, dedicated to secondary hole expansion, edge chamfering and burr removal for stone decorative materials without cooling water. Every M14 Golden Pagoda Hole Expander adopts golden anti-rust integrated coating and full exposed vacuum brazed diamond grit covering three stepped grinding layers, realizing one-step multi-size hole finishing to avoid frequent tool replacement during stone processing.
The M14 Golden Pagoda Hole Expander integrates three mainstream outer diameters: 20mm, 35mm and 50mm, each step with unified 12mm independent grinding height, and the overall effective working depth reaches 52mm to meet deep hole trimming demands. Standard M14 thread shank can be quickly locked onto all common angle grinders without extra conversion adapters. Each finished M14 Golden Pagoda Hole Expander undergoes strict torsion resistance, wear resistance and grinding smoothness quality inspection before packaging, making the M14 Golden Pagoda Hole Expander an efficient multi-size hole finishing solution for professional stone fabricators, tilers and countertop DIY renovation workers.
| Parameter Item | Detailed Parameter |
| Place of Origin | Qinghe Town, Jishan County, Yuncheng City, Shanxi Province, China |
| Brand Name | Van Lonzo |
| Model Number | M14 Golden Pagoda Hole Expander; Step Diameters:20mm,35mm,50mm, M14 thread shank |
| Certification | CE, EN: 13236 |
2. Craft & Performance
All grinding layers of the M14 Golden Pagoda Hole Expander are manufactured by mature high-temperature vacuum integral brazing technology, the core production craft that guarantees ultra-long service life and stable consistent dry grinding efficiency of the M14 Golden Pagoda Hole Expander. The fully exposed dense diamond grit evenly covers the three stepped grinding surfaces, forming natural gap channels to rapidly discharge stone dust generated during high-speed rotation, effectively preventing grit clogging, local overheating and diamond grain passivation during long continuous dry chamfering and hole expansion work. The uniform golden anti-rust coating wraps the whole thickened steel body and M14 threaded base, isolating stone powder, moisture and corrosive mineral residue to prevent surface oxidation even under long-term anhydrous stone processing environments.
The seamless vacuum brazed fusion layer firmly locks every diamond grit particle, greatly reducing grit shedding under sustained high-speed friction load. The integrated pagoda stepped structure delivers powerful anti-torsion and anti-vibration performance, ensuring uniform grinding force on inner hole walls to create smooth, burr-free round hole edges, significantly lowering chipping and cracking risks of fragile quartz, tile and thin marble slabs. With three common hole sizes combined into one compact pagoda tool, the M14 Golden Pagoda Hole Expander simplifies multi-stage stone hole finishing procedures and drastically improves daily countertop and tile processing efficiency.
Application
The multi-layer stepped integrated M14 Golden Pagoda Hole Expander is an indispensable M14 angle grinder accessory for stone factory workers, tile installers, cabinet countertop fabricators, renovation contractors and amateur DIY stone processing lovers who frequently conduct dry hole expansion and chamfering work. The three stepped diameters inside the M14 Golden Pagoda Hole Expander can enlarge pre-drilled small holes, smooth rough hole inner walls and create neat 45-degree chamfers on marble, granite, quartz stone and thick vitrified tile without continuous cooling water supply; the 20mm small step handles minor hole correction, the 35mm middle step fits standard hardware hole widening, while the 50mm large step completes large drain and faucet hole finishing.
All bits adopt standard M14 threaded port, which can be directly locked on all mainstream M14 spindle angle grinders without auxiliary conversion fittings; compact integrated pagoda body size allows access to deep confined countertop hole gaps unreachable by single-size flat grinding tools. Whether commercial stone countertop mass production, residential indoor thick tile renovation or temporary outdoor stone hardware hole finishing without running water, the M14 Golden Pagoda Hole Expander meets all regular multi-size dry hole expansion and chamfering demands, removing the extra cost of separately purchasing three single-size grinding tools one by one.
Advantages
1. 3-In-One Pagoda Multi-Step Integrated Design: The M14 Golden Pagoda Hole Expander combines 20/35/50mm three mainstream grinding diameters into one tool, covering all daily stone hole expansion and chamfering needs to save scattered separate procurement costs.
2. Fully Exposed Dense Diamond Grit Dry Grinding Structure: Open exposed grit layout realizes automatic fast dust removal and anti-clogging, maintaining persistently sharp stable grinding performance without cooling water supply.
3. Premium Bright Golden Anti-Corrosion Protective Coating: Vivid golden rust-proof coating matches full exposed diamond grinding layers, balancing long-term dry processing anti-oxidation performance and lasting high-efficiency hole finishing capacity.
4. Universal M14 Thread Wide Compatibility: The integrated M14 threaded base directly fits all mainstream M14 spindle angle grinders for quick locking and stable low-vibration high-speed rotation.
5. Thickened Solid Steel Vacuum Brazed Base: Heavy-duty solid steel substrate with integral high-temperature brazing resists twisting and grit shedding under continuous high-speed dry grinding load.
6. Unified Layered Step Dimension Layout: Each grinding step shares identical 12mm independent height, bringing consistent chamfer depth control and stable uniform grinding experience.
7. Authorized Industrial Safety Certification: The full M14 Golden Pagoda Hole Expander passes CE & EN 13236 industrial safety certification, running with low vibration during dry processing to lower stone and tile cracking risk.
FAQ
Q1: What materials can the M14 Golden Pagoda Hole Expander process?
A1: It fits marble, granite, quartz stone, glazed tile, vitrified tile and artificial stone; it is not suitable for reinforced concrete or solid metal.
Q2: What power tools match this pagoda grinding tool?
A2: It adopts standard M14 threaded port, fully compatible with all angle grinders equipped with M14 spindle.
Q3: Why choose the M14 Golden Pagoda Hole Expander instead of single-size grinding bits?
A3: This integrated pagoda tool contains three commonly used hole processing sizes from 20mm to 50mm, you don’t need to buy separate grinders for different hole diameters, greatly saving your purchasing and storage cost.
Q4: Can this pagoda expander work for long continuous dry grinding without rest?
A4: Intermittent short dry operation is recommended to prevent tool overheating; prolonged non-stop dry grinding will shorten the service life of the M14 Golden Pagoda Hole Expander and raise stone cracking probability.
Q5: Can I customize the appearance and packaging of the M14 Golden Pagoda Hole Expander for bulk wholesale orders?
A5: Yes. As the original manufacturer of this pagoda grinding tool, we provide full OEM & ODM customization including tool body color, private brand logo printing and personalized packaging for global hardware importers and cross-border merchants.
Q6: What stepped diameters are contained in the M14 Golden Pagoda Hole Expander?
A6: It includes 20mm, 35mm and 50mm three vacuum brazed golden exposed grit stepped grinding layers with universal M14 thread shank.
