4 Other chisel

In the original part of the ears, there is a tsuba-like protrusions (there are both tsuba and tsuba). Used to drill holes for drilling large nails into a member. After hitting the hole until it reaches the appropriate depth, then tap the tsuba from below and pull it out. There are two blades and one blade.

The cross section of the ear tip is rectangular. There are two types of cutting edges: those with streaks engraved on the plane vertically and horizontally, and those with the central part cut into V-shaped. When a hole is penetrated into a member, dig from both sides to about half with a ward chisel, etc., and then tap from one side by tapping.

The neck is warped, and the cutting edge is bent in the shape of "ku". There is no crown on the handle. Used to expose the chips at the bottom of the hole.

The blade tip is bent in a hook shape and is shaped like a harpoon for fish. Used to expose and finish the dust in the hole.

The tip of the blade is shaped like a long sword with the blade of the sword as both blades. Used when finishing sharp corners or precisely finishing corners at right angles.