This kit contains five jigs for sharpening your knives, scissors, and axes as well as short chisel and carving tools. The Knife Jig is for most knives, width 45mm (1-3/4"), minimum blade length 60mm (2-3/8"). Long knives need to be stiff. Also for carvers draw knives. Long Knife Jig is for long and flexible knives, minimum blade length 160mm (6-3/8"). The 140mm (5-1/2") width of the jig stabilizes a thin blade. Scissors Jig works for scissors of all sizes and shears. Also suitable for portable electric hand planer blades. The Short Tool Jig is for straight shanked carving gouges and V-tools down to 45mm (1-3/4") length, short wood chisels, and tools for power carvers. Maximum tool width is 3mm (1-1/4"). The Axe Jig works for carving and carpenters axes.