many other types and sub-types of saw. Most saws sold in the West are mass-produced items with induction-hardened teeth and relatively cheap replaceable blades. The handmade forged saws are very laborious to make and involve more manufacturing steps in the forging to complete than planes or chisels. , is most commonly a wooden block, or containing a laminated blade, sub-blade, and securing pin. In the Japanese plane, the blade is fixed in position primarily by the plane's abutments that are cut in the sides of the dai. This is similar to a still manufactured type of European wooden plane, in which the blade is fixed in place by tapping down upon a wooden wedge. Unlike a western plane, the support bed for the blade is not a flat surface in a Japanese plane - rather it is convex. The blade itself is tapered in thickness so as to wedge tightly into the dai when tapped down into place. The blade is also tapered in width to allow its projection to be adjusted by tapping it from side to side, so that a uniform shaving thickness can be attained. Japanese planes are generally operated by pulling rather than pushing, and work can be done in the seated position or using the whole body for more power. Considered part of the kanna family, the yarigana is an archaic type of Japanese plane resembling a spear. The yarigana is a single piece of steel with one end being used as a handle and the other forged into a leaf shaped blade. The carpenter holds the yarigana with two hands, perpendicular to his arms, and pulls towards his body producing a concave gouge in the timber. The yarigana was in universal use prior to the introduction of the block-mounted wood plane to Japan, and is today typically reserved for use on large circular columns or in cases where a more rustic appearance is desired in the final element. . There are bench chisels, paring chisels, striking chisels, heavy timber chisels and slicks, and myriad others for specialized applications. Like the planes, the blades are of laminated hard steel/soft steel construction. Bevel angle varies from 20˚ to 35˚ typically, with mortising and heavy chisels featuring steep angles, and paring chisels having shallower angles. It is common in Japan to work with softwoods, so many chisels are made with that in mind, and require the bevels