Home page - Walter Machines- europe still grinding machines ,Walter Maschinenbau is one of the world leading manufacturers of tool grinding machines and optical CNC measuring machines. Global presence and customer proximity are the key to our success.Home | Inland CraftInland Craft has been manufacturing diamond grinders and related equipment for artists, hobbyists and industry for over 30 years. We produce, in the USA, the line of plated diamond grinding bits against which all others are measured.