Professional, heavy duty staple and nail gun you can use for upholstery, picture framing - even DIY jobs such as flooring or insulating. The nail gun has an all-steel construction with a durable chrome finish and long-lasting harden steel working parts. With an easy squeeze double leverage operation - and a patented jam-proof mechanism - it can drive heavy duty staples into wood, plastic - even soft metals. The T50 takes 6 sizes of staple (not supplied) : 6mm (1/4 inch) 8mm (5/16 inch) 10mm (3/8 inch) 12mm (1/2 inch) Ceiltile 13mm (17/32 inch) 14mm (9/16 inch) And it drives 15mm brad bails (5/8 inch)