Alloy grinding head set with diamond and emery grinding heads for glass, jade, and stone, featuring 3mm shank diameter elliptical cone shapes in diamond and golden diamond colours, 45mm length with 80 mesh grit size
Alloy grinding head set with diamond and emery heads for glass, jade, and stone work

This alloy grinding head set delivers precise abrasive action for detailed material work on challenging surfaces including glass, jade, and various stones. Designed with elliptical cone shapes, these grinding heads provide controlled contact points ideal for intricate engraving, carving, smoothing, and finishing applications where accuracy and control are essential. With a standard 3mm shank diameter, these accessories integrate seamlessly with most rotary tools, offering crafters, hobbyists, and repair technicians an effective solution for material removal and surface preparation tasks without requiring specialised equipment.
Features and Construction

This grinding head set combines practical design elements with material specifications suited for working on hard, brittle surfaces. The elliptical cone shape represents a deliberate choice for applications requiring both broad surface contact and precise point work, allowing users to transition between different types of material removal without changing tools. With consistent dimensions and standardised fittings, these grinding heads provide reliable performance across various projects.
Material and Build
The grinding heads utilise emery as the abrasive material, with an 80 mesh grit specification that determines the coarseness and cutting action. This grit size balances material removal rate with surface finish quality, making it suitable for both shaping and finer finishing work. The alloy construction of the grinding head bodies provides the necessary rigidity and heat dissipation during extended use, while the emery coating delivers consistent abrasive performance across the working surfaces.
Size and Practical Fit
Each grinding head measures 45mm in total length with a 3mm outside diameter, providing a substantial working surface while maintaining good balance in rotary tools. The 3mm shank diameter represents a common industry standard, ensuring compatibility with a wide range of rotary tools, engravers, and flex-shaft systems without requiring adaptors or special collets. This dimensional consistency allows for predictable performance and easy replacement when individual heads reach the end of their useful life.
Uses and Placement

The specified application scope covers glass, jade, and stone materials, indicating these grinding heads are formulated for working on hard, often brittle surfaces that require controlled abrasive action. This makes them particularly relevant for crafts involving decorative work, repair tasks, and creative projects where traditional cutting tools might be less effective or pose fracture risks to the workpiece.
Event or Professional Use
For professional jewellers, stone workers, and glass artisans, these grinding heads offer a practical solution for detailed shaping, engraving, and surface preparation work. The elliptical cone shape allows for both broad area work and precise detailing in a single tool, reducing the need for frequent bit changes during complex projects. The 80 mesh grit provides sufficient aggressiveness for shaping while still allowing for reasonably fine finishing work on materials like jade and decorative stones.
Everyday Home Use
Hobbyists and DIY enthusiasts will find these grinding heads useful for various craft projects involving glass etching, stone carving, and decorative work on hard materials. The standard 3mm shank ensures compatibility with commonly available rotary tools, making them accessible for home workshops without requiring specialised equipment. The diamond and golden diamond colour variations provide visual differentiation between similar grinding heads in a collection.
Benefits and Buying Value

This grinding head set represents a focused solution for specific material working applications, with design elements tailored to the requirements of glass, jade, and stone surfaces. By concentrating on a defined application scope rather than attempting to serve all possible materials, these grinding heads can deliver more predictable performance within their intended use range.
Reuse and Low Maintenance
The alloy construction and emery abrasive material combination requires minimal maintenance beyond basic cleaning to remove debris. With no moving parts or complex mechanisms, these grinding heads offer straightforward operation and can be stored indefinitely when not in use. The standard shank diameter ensures they remain compatible with future tool purchases as workshop equipment evolves.
Why Choose This Product
This grinding head set distinguishes itself through its specific application focus on glass, jade, and stone materials, coupled with the elliptical cone shape that provides versatility within that application scope. The combination of 80 mesh grit emery with standard 3mm fittings creates a practical accessory for both occasional hobby use and more regular craft or repair work, offering reliable performance without requiring specialised knowledge or equipment for operation.

