Sharpen your carbide-tipped tools like a pro with this versatile 4-inch flat resin diamond grinding wheel. Diamond is the only abrasive that effectively grinds carbide, and this wheel is designed specifically for that job. It has a 3/4-inch arbor hole to fit most standard bench grinders or dedicated carbide grinder setups. The listing offers choices in grit (from coarse 150 to fine 400) and thickness (from 6mm to 25mm), so you can select the right wheel for rough shaping or fine honing. It's an unbranded wheel made in China, but it's a new, essential tool for any woodworker, metalworker, or DIYer who uses router bits, lathe tools, or other carbide blades and wants to save money by sharpening them themselves. A quality diamond wheel pays for itself quickly compared to replacing expensive bits.