Call Us: 1-866-354-0894

4″ BD-400E Economy Diamond Polishing Disc Kit

4″ BD-400E Economy Diamond Polishing Disc Kit


This kit includes one each of the 50, 100, 200, 400, 800, 1,500, and a 3,000 Grit 4″ economy grade resin diamond polishing discs. Seven discs in total.

Note: These items are shipped directly from the manufacturer.

Available on backorder

SKU: BD-400EKIT Categories: , ,


Important Break-In Procedure
Diamond resin discs are shiny when new. This shine must disappear in order for the discs to perform their best, especially with the finer grits (400 and up). To do this, run any new disc on a rough surface – such as granite, sandstone or concrete – always making sure there is enough coolant (water). This will force the outer bond to be eroded, leaving the diamonds properly exposed for polishing. They will gradually perform even better as normal wear sets in.

Additional information

Weight6.00 lbs
Dimensions4 × 4 × 4 in

Contact Us

515 1st Street
Keystone, SD 57751

Order: 1-866-354-0894
Information: 605-666-4813

Find Us On Social