chavetero 22
plural of keyways chaveteroLos are slots machined axial surfaces of trees ( 41 axes; or holes in order to ensure transmission of rotation, strength and power, in such keyways are keys that are elements of machines that they make the unoion between the tree and the bucket ( 41 hole surface;. Segun ISO, are made of steel with a resistance of 70 to 80 kp/mm2 tensile.The advantage is that the keyway can be milling with a disc cutter, but also are machined with strawberries-Tang, on the router using your head by default, with the porta-fresa tree or Dado head.