| 摘要 |
A cutting-tool holder ( 1 ) used for grinding includes a holder body ( 10 ) including a pair of pinching pieces ( 11, 11 ) biased to each other; and a pair of handgrips ( 30, 30 ) provided on the holder body ( 10 ) which sets the pair of pinching pieces ( 11, 11 ) apart from each other by applying force to the handgrips ( 30, 30 ). The holder body ( 10 ) may further include a connecting portion ( 12 ) with a nearly C-shaped cross section which connects base end parts ( 11 c, 11 c) of the pinching pieces ( 11, 11 ). Each handgrip ( 30 ) may be configured so that one end part ( 30 a) is fixed to the pinching piece ( 11 ), the middle part penetrates the connecting portion ( 12 ), and the other end part extends away from the pinching piece ( 11 ).
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