PROBLEM TO BE SOLVED: To provide a driving tool which is provided with a mechanism for absorbing reaction caused during driving and can obtain sufficient driving force with small pressing force applied to a driven material.;SOLUTION: A driving tool includes: a plunger 32 with which a driver 31 for driving a fastener is connected; a plunger biasing member 33 which biases the plunger 32 to an injection port 16; a balancer 36 for absorbing reaction caused during driving of the fastener; plunger guides 34 disposed at both sides of the plunger 32; and a balancer guide 35 in which the plunger 32 is slidably installed at the exterior side. The plunger guides 34 are fixed to both sides of the balancer guide 35 to make the plunger 32, the plunger biasing member 33, the balancer 36, the plunger guides 34, and the balancer guide 35 into a unit to form a plunger unit 30.;SELECTED DRAWING: Figure 13;COPYRIGHT: (C)2019,JPO&INPIT
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