A corner trowel is a plastering tool for forming internal corners in plaster and drywall. Some models have flexible stainless steel blades that flex to 90 degrees for corners that aren't true.
Use a corner trowel with curved corners to eliminate lines in the plaster for a smooth finish.
Choose a model with a soft grip handle and finger guard for comfort and protection.
Brands and types in the UK (3)
OX Pro Internal Corner Trowel 4'' x 5''
Forms perfect 90° internal corners in one pass in plaster and drywall.
Sources: product listings from B&Q, Builder Depot, Wickes, checked on 31-10-2026. Photos are from Builder Depot (with permission) the manufacturer or the shop (shown under each photo); where there is no photo we show a drawing. Original Fixiz Academy text; data can change, always check the manufacturer data sheet.