Metals Brittle Soft
- Aluminum
- Brass
- Bronze
- Iron
- Copper
- Stainless Steel
- Mild Steel
- Tool Steel
- Hardened Steel
- Tin
- Titanium
- And many others..
- Plate Glass
- Art Glass
- Ceramic Tile
- Limestone
- Granite
- Marble
- Plexiglass/Acrylic
- Polycarbonate
- Polyethylene
- Polyurethane
- PVC
- Vinyl
- Foam
- Rubber
- Neoprene
- Nylon
- Silicone
- HDPE
- UHMW
Natural materials require discretion.
- Leather
- Hard Wood
- Plywood
- Porcelain