Shank Diameter: Ø3.2mm

Stone Diameter: Ø9.5mm

Shape: Ball

This Mini Grinding Stone is a specialized abrasive tool designed for intricate contouring, hollow-grinding, and
internal radius smoothing. Featuring a 9.5mm ball-shaped head (spherical profile), this bit is the ultimate choice
for creating uniform concave depressions and cleaning up rounded indentations where flat or pointed stones would
leave unwanted gouges. Its perfectly round geometry allows for multi-directional grinding, making it exceptionally
easy to blend transitions on irregular surfaces.

The 9.5mm stone diameter provides a substantial contact area for a spherical bit, allowing for efficient material
removal while still maintaining the delicate touch required for precision work. Whether you are deburring the inside
of a pipe exit, carving smooth channels in wood or stone, or refining the cast lines on metal components, the
rounded profile ensures a consistent finish from any angle. The high-grade abrasive composition is engineered to
stay cool and resist loading, ensuring the ball maintains its spherical accuracy throughout its life.

Equipped with a standard 3.2mm shank, this ball stone is fully compatible with Dremel and other high-speed rotary
tools. The precision-bonded construction ensures the 9.5mm head remains perfectly balanced at high RPMs, providing a
smooth, chatter-free experience. This stability is vital when performing detailed 'free-hand' work, as it gives the
user the steady control needed to follow complex curves and interior contours without the tool skipping or jumping.

Ideal for jewelers, woodcarvers, and metal fabricators alike, this 9.5mm ball grinding stone is a must-have for any
project involving curved geometries. Its ability to create smooth, rounded finishes and reach into spherical
recesses makes it one of the most versatile shapes for artistic refinement and mechanical deburring.

Application:

• Max rated RPM: 35 000 RPM


• Sharpening chisels, knife edges cutting tools and more.


• Removes sharp edges on cut metal parts.


• Refines contours in metal or stone.


• Removes rust, weld spatter, and surface coating.


• Ceramics: 20 000 - 30 000 RPM


• Glass: 20 000 - 30 000 RPM


• Stonework: 20 000 - 25 000 RPM