Magna-Matic 2.5" High-Temp Hose Sold By The Foot Professional Machine It is a serious polishing

It is a serious polishing stone

but more importantly

A magnet (13) keeps the knife in place

but they are also intended to be practical tools for use in demanding kitchens

Two Grits One Stone

Magna-Matic 2.5" High-Temp Hose Sold By The Foot Professional Machine It is a serious polishingFor Use With Magna Matic Dust Collection Systems This high temperature 2. 5" diameter hose with yellow spiral is used with Magna Matic dust collection systems, water cooled grinding systems, and CO exhaust systems. This hose is easy to work with it can be cut with a knife or shears, it is light weight and is crush proof. This hose is great for Magna Matic dust collectors. Hose wall: polyester fabric, coated with EPDM PP External helix: plastic helical