公开(公告)号：US11794325B2

公开(公告)日：2023-10-24

申请号：US17672999

申请日：2022-02-16

Applicant: MAKITA CORPORATION

Inventor： Naoki Inagaki ,  Yoshitaka Machida ,  Hiroki Kaneko

IPC: B25D17/06 ,  B25D11/00 ,  B25D16/00 ,  B25D17/08

CPC classification number: B25D17/06 ,  B25D11/00 ,  B25D16/00 ,  B25D17/08

Abstract: A power tool having a rotary hammer mechanism is configured to produce hammering motion for driving a tool accessory along a driving axis and rotating motion for rotating the tool accessory around the driving axis. The power tool has a tool holder that is configured to removably hold the tool accessory. The tool holder has a rotation transmitting part configured to transmit rotating power to the tool accessory. A layer formed of carbide of a group 5 element of a periodic table is formed on the rotation transmitting part.