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 driver 31 which is provided so as to be slidable to an injection port 16 to drive a fastener from the injection port 16 provided at a tip of the tool; a plunger 32 with which the driver 31 is connected; a plunger biasing member 33 which biases the plunger 32 to the injection port 16; and a balancer 36 for absorbing reaction caused during driving of the fastener. The balancer 36 becomes movable in a direction away from the injection port 16 by the plunger 32 starting moving in a direction of the injection port 16.;SELECTED DRAWING: Figure 13;COPYRIGHT: (C)2019,JPO&INPIT
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