4"x1" 220Grit Diamond U-Shape Carving Grinding Wheel for Lapidary & Gemstone

U-Shape Diamond Wheel, also called Diamond U Profile Wheel, is a diamond grinding wheels, precision-engineered tool for carving, intarsia, channel work, stained glass, and applications requiring smooth, curved edge shaping. Its concave face allows artisans to grind, shape, and polish curved profiles efficiently. Built with a steel core and coated with premium diamond grit, it delivers long-lasting performance and superior balance.

Ideal for lapidary artists, glassworkers, and jewelry makers. Supports gemstone shaping, glass edgework, and detailed channeling. Diamond grinding wheels comes in widths of 1/4", 1/2", and 1", with multiple wheel diameters to suit various projects. The 1" arbor includes bushings for 1/2", 5/8", and 3/4" shafts, compatible with lapidary and grinding machines such as Diamond Pacific Titan, Genie, and Pixie. Provides precision, smoothness, and control needed for professional-grade results. 

Key features:

• Rounded concave face for precise curved profiles
• Convex diamond form for rough material removal and fine finishing
• premium diamond grit on solid steel core for long-lasting performance
• Available in multiple widths and diameters for versatile use
• 1" arbor with bushings fits 1/2", 5/8", and 3/4" shafts
• Professional-grade precision for carving, intarsia, channeling, and glass edgework
• Delivers consistent, smooth, and controlled cutting action
• Durable construction for demanding workloads in lapidary and glass workshops