The SIA blue line 4819 zirconium sanding disc offers long life due to it's two layers of grinding aid and can be used on mildsteel, stainless and aluminium. With the Siabite 4515 ceramic disc providing a heavy duty stainless steel sanding option.
The SIA blue line 4819 zirconium sanding disc offers long life due to it's two layers of grinding aid and can be used on mildsteel, stainless and aluminium. With the Siabite 4515 ceramic disc providing a heavy duty stainless steel sanding option.