Luminbo Professional Heavy Duty Diamond Tip Glass Cutter - Brass Snapper - Hardwood Handle The classic glass cutting tool still favored for it's simple effectiveness Improved with embedded industrial diamond - hardest cutting material available Notched brass teeth for snapping scored glass; sized for glass 1/16" to 5/16" Weighted cutting head and brass snapper are adjustable/removable Comfortable hardwood handle with carved finger rests; length overall 6-1/2"