Medium Grit Diamonds | Standard | Blue Ring

Medium diamonds — unbanded standard — for universal preparation — the default grit for everyday grinding. Every diamond in this collection carries its grit and ring color directly in the product title, matched to ISO grit code 52x.

No ring is not no grit: an unbanded diamond is a medium — the standard that balances cutting rate and surface finish for general work. This is the largest grit family in the Busch range.

FAQ

What does the unbanded standard indicate? Medium grit under the standardized diamond color-coding system — see the color guide linked below for the full ladder.

Why is there no colored ring? Busch, like many manufacturers, leaves the blue band off standard mediums — an unmarked diamond is a medium, not a defect.

Where are these diamonds made? Every instrument in this collection is manufactured by Busch & Co. in Engelskirchen, Germany — an ISO 13485-certified specialist in rotary precision instruments since 1905 — and ships fast from our US warehouse.

Reference resources: Bur Comparison Chart · Speed Chart · Color Coding & ISO Guide · Glossary

Further reading: Busch Bur Ring Colors Explained: How to Read Grit, Blade Count, and the Gold COO