Made of high-quality polished wood for a comfortable grip, the chisels are made of hardened steel. Various shapes and sizes for various projects. [Total length] 19.5 cm 【Chisel length】9 cm 【Chisel thickness】6 mm [Chisel shape] flat knife, curved knife, curved flat knife, sharp knife, inner circular knife, outer circular knife, oblique knife, triangular knife Product features: When using a chisel to drill holes, generally hold the handle of the chisel in the left hand and the hammer in the right hand. When drilling holes, the chisel should be shaken on both sides. For drilling, approximately half of the hole should be drilled from the back of the component, and then the front is chiseled in turn until it is drilled through. 12 Wood Chisels + Leather Storage Bag (2 Flat Knives / 2 Slant Knives / 3 Arc Knives / 1 Triangular Knives / 1 Outer Round Knives / 1 Inner Round Knives / 1 Curved Flat Knives / 1 Sharp Knives) Ideal for any wood carving workshop, this set is ideal for carpenters, sculptors, artists, and many other professions.