Shank Diameter: Ø3.2mm

Stone Diameter: Ø6.4mm

Shape: Cone

This Mini Grinding Stone is a precision-engineered abrasive accessory designed for detailed carving, internal
deburring, and refining tight geometries. Featuring a 6.4mm cone-shaped head, this tool provides a slim, tapered
profile that strikes the perfect balance between the ultra-fine reach of a micro-bit and the material-removal power
of larger stones. It is particularly effective for smoothing out internal radii, cleaning up small castings, and
tapering the edges of holes in hard materials.

The 6.4mm stone diameter allows the tool to fit into narrow channels and acute angles that larger bits cannot
access, while the pointed tip offers pinpoint accuracy for localized grinding. This conical shape is ideal for
'v-grooving' or creating precise countersinks in metals, glass, and ceramics. The high-quality abrasive grains are
bonded to resist premature wear, ensuring that the stone retains its sharp, tapered edge even when subjected to the
high-speed friction required for hardened steel or alloy work.

Equipped with a universal 3.2mm shank, this stone is compatible with almost all high-speed rotary tools, including
Dremel models. The precision alignment between the 6.4mm head and the 3.2mm shank ensures a concentric, wobble-free
rotation, which is critical for fine-detail work where a steady hand is required. This stability reduces user
fatigue and prevents the tool from 'jumping' out of delicate grooves, allowing for a professional, uniform finish on
every workpiece.

Whether you are an artist working on a detailed sculpture, a gunsmith refining a small component, or a hobbyist
cleaning up a 3D-printed part, this 6.4mm cone grinding stone is an indispensable tool. Its versatility makes it
suitable for both aggressive material removal and light touch-ups, providing a smooth transition between rough
grinding and final polishing in any workshop setting.

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