Klingspor CS570 Zirconia Fibre Disc - 115mm, 80g (25pk) 4232060 They have an internal pressure-regulating

They have an internal pressure-regulating valve

Wheel size 5/8" diameter x 5/16" width x 1/4" bore Spiral Knurl Wheels (Right & Left)

Controls Fuel Pressure

These are the same cam chains supplied stock in every modern Japanese four-stroke dirt bike

Length: 180mm Cuts piano wire: 1

Klingspor CS570 Zirconia Fibre Disc - 115mm, 80g (25pk) 4232060 They have an internal pressure-regulatingGrain: Zirconia Fibre discs CS 570 fibre discs that deliver a high removal rate on stainless steel, steel, NF metal and aluminium Grinding work on metal presents a particularly daunting challenge to any abrasive. Metals prove to be difficult materials as they are tough, yet exceptionally hard at the same time. The most formidable of these metals are stainless steel and high alloy steels, so called super alloys. The fibre discs CS 570 tackle these