A hand tool for reducing hand vibration, comprising: a casing including a front section , a rear section , and a buffering section connected between said front and rear sections , said buffering section being made of an elastic material, said rear section being adapted for gripping; a driving module disposed on said front section ; a power module disposed on said rear section , and electrically connected to said driving module to supply electricity to said driving module ; and a workpiece connected to said driving module , extending out of said front section , and driven by said driving module to operate; said hand tool being characterized in that : said buffering section includes a main body and a protective member ; said main body has a large diameter portion connected to said front section , a small diameter portion extending from said large diameter portion and connected to said rear section , a communication channel extending through said large diameter portion and said small diameter portion , and an installation slot formed in said large diameter portion and adjacent to said front section ; and said protective member includes a disc body portion installed in said installation slot , and a tube body portion extending from said disc body portion and extending into said communication channel , said disc body portion and said tube body portion cooperatively defining a wire channel . a casing including a front section , a rear section , and a buffering section connected between said front and rear sections , said buffering section being made of an elastic material, said rear section being adapted for gripping; a driving module disposed on said front section ; a power module disposed on said rear section , and electrically connected to said driving module to supply electricity to said driving module ; and a workpiece connected to said driving module , extending out of said front section , and driven by said driving module to operate; said hand tool being characterized in that : said buffering section includes a main body and a protective member ; said main body has a large diameter portion connected to said front section , a small diameter portion extending from said large diameter portion and connected to said rear section , a communication channel extending through said large diameter portion and said small diameter portion , and an installation slot formed in said large diameter portion and adjacent to said front section ; and said protective member includes a disc body portion installed in said installation slot , and a tube body portion extending from said disc body portion and extending into said communication channel , said disc body portion and said tube body portion cooperatively defining a wire channel . said main body has a large diameter portion connected to said front section , a small diameter portion extending from said large diameter portion and connected to said rear section , a communication channel extending through said large diameter portion and said small diameter portion , and an installation slot formed in said large diameter portion and adjacent to said front section ; and said protective member includes a disc body portion installed in said installation slot , and a tube body portion extending from said disc body portion and extending into said communication channel , said disc body portion and said tube body portion cooperatively defining a wire channel . <EOS>