Magma Diamond Tool offers 6-inch Snail Lock Puzzle Edge Polishing Disks for flat and bullnose edges. Each has a pressure of 2.5 bar. According to the company, during a test on engineered stone they stopped at 1500 and they did not need to use the 3000 or buff.

Panther Polishing Powder (P3), available from Stone Boss, is specifically formulated with refined polishing agents and micro abrasives to polish marbles and granites to a high luster. 

Stonetech Natural Stone Countertop Sealer is ideal for interior and exterior installations, including countertops, shower walls, thin bed walls and cement backer board walls. Recommended surfaces include marble, granite, limestone, quartzite, Bluestone, travertine, sandstone, slate and flagstone.

The Filastone Plus enriches the color of polished, honed, textured and tumbled natural stone. It highlights the character of the natural surface, while protecting the surface from dirt, water and oil stains. It also enhances and intensifies the stone’s natural color with a matte finish.

New Tenax automated edge polishing wheels are excellent on all materials, including quartz, granite, marble, porcelain and ceramic. They can be used for either a straight edge or a bullnose edge. 

The LTZ-8221 from Marmo Meccanica-NA is a multi-head stone profiling and polishing machine with the ability to process round and flat edges up to 10 cm.