Flat Chisel 
10mm x 150mm x 18mm
25mm x 280mm x 17mm  
25mm x 450mm x17mm  
50mm x 280mm x 17mm 
50mm x 450mm x17mm   
75mm x 280mm x 17mm  
75mm x 410mm x 30mm
25mm x 360mm x 18mm (MAX) 
25mm x 400mm x 18mm (MAX)  
50mm x 360mm x 18mm (MAX)  
75mm x 360mm x 18mm (MAX)