Due to different particle sizes some products have small pores while others do not. Please be informed.Diameter : 100mmHole : 20mmThickness : 40mmAbrasive Thickness : 10mmx10mmType : Abrasive DiscDIY Supplies : ELECTRICALProduct Name : Vitrified Diamond Wheel 100mm vitrified diamond cup grinding wheel designed for grinding PCD and PCBN tools, ensuring precision and durability. Features a 20mm hole and 40mm thickness, making it compatible with various grinding machines for versatile applications. Ideal for both rough and precision grinding, this wheel effectively removes materials quickly while achieving a low surface roughness. Constructed with diamond abrasives, it excels in processing hard and brittle materials such as ceramics and hard alloys. Easy installation with a concentrate on safety—inspect for cracks before use and ensure proper balance for optimal performance during grinding. Model WBWAPA Grit Type Coarse Brand Name WBWAPA Grit Number 1.0 Part Number WBWAPA Manufacturer WBWAPA Item Dimensions 0.39 x 0.39 x 0.1 inches Number of Items 1 Grit Material Type Alloy Steel Item Dimensions L x W 0.39 L x 0.39 W