(1) The connection between the hammer head and the handle must be firm. When the hammer head and the handle are loose, they must not be used with cracks and cracks. The wedge of the hammer head and the hammer handle in the installation hole is preferably a metal wedge. The length of the wedge should not be greater than 2/3 of the depth of the installation hole.
(2) In order to have a certain elasticity when hitting, the middle of the handle is slightly narrower than the end.
(3) When using a sledgehammer, attention must be paid to front, back, left and right, and up and down. It is strictly forbidden to stand in the range of the sledgehammer, and it is not allowed to hit each other with a sledgehammer.
(4) The hammer head is not allowed to be quenched, and cracks and burrs are not allowed, and flashing curls should be repaired in time.
The claw hammer can be used for striking, hammering, and pulling nails, but it should not be used for hammering larger workpieces. When nailing a nail, the hammer head should be flat against the nail cap, so that the nail enters the wood vertically. When lifting the nail, it is advisable to pad a wooden block at the horn to enhance the pulling force. The claw hammer should not be used as a pry tool. Pay attention to hammer The flat surface is intact to prevent the nails from flying out or the hammer from slipping and hurting people.