Corner finisher tool for applying mastic

摘要: A corner finisher spreads mastic on a joint formed at an inside of drywall. The drywall is conventionally used with plurality alternative tools for supplying coats in different thicknesses. Therefore, quick disconnect coupler provided to rapidly change the and yet hold them so securely that there almost no chance unwanted between one mastic. invention provides such form ball socket behind sliding locking plate having key hole slot it receiving delivery device.