3M 341D Cartridge Roll, Straight, 3 4 in Dia x 1 1 2 in L, 3 16 in Pilot, Aluminum Oxide, 60 Grit, 100 PK DC18RC Cartridges of sealant fit into Cartridges of sealant fit into the barrel of these manual caulk guns Country of Origin United States Overall Height 4 5 8 in Height 4 5 8 in Spout Length 4 in Spout Height 3 5 16 in Overall Width 12 19 32 in For Surface Thickness Maximum 1 1 2 in Overall Depth 6 11 64 in Spout Outlet Height 2 9 32 in For Mounting Hole Diameter Minimum 1 in Spout Height Maximum 3 5 16 in Inlet Connection Size 1 2 in Mounting Hole Center to Center 4" Mounting Type Centerset Finish Chrome Handle Type Wristblade Handle Material Metal Number of Handles 2 Body Material Brass Green Certification or Other Recognition WaterSense Certified Standards ASME A112 000 RPM Backing Material Cloth Backing Weight X Coating Coverage Closed Color Brown Country of Origin USA and durable abrasive that penetrates the work surface and withstands heat and high speeds