Marshalltown M51D Bullnose Internal Corner Trowel 5" x 3 1/2" Drywall / Plaster 5-Inch x 3-1/2-Inch Inside Bullnose Drywall Corner Trowel with Dura Soft Handle for drywall taping and finishing. Size 5 inch x 3 1/2 inch - 125mm x 95mm. Stainless steel blade. Durasoft handle. 90 degree internal corner.