1.Wide Application:Used for opening holes in model shells, plastic carbon boards, and wooden boards. 2.Hole expander with 0-14mm graduated scale,allows you to accurately determine the depth of the drill hole. 3.Hollow handle,light weigt to carry,mesh design for easy to grip. 4.The model hole opener features a through-hole in its body, designed for inserting a pry bar to assist with turning. 5.The top of this manual reamer rotates for easy hand-drilling. 1.Wide Application:Used for opening holes in model shells, plastic carbon boards, and wooden boards. 2.Hole expander with 0-14mm graduated scale,allows you to accurately determine the depth of the drill hole. 3.Hollow handle,light weigt to carry,mesh design for easy to grip. 4.The model hole opener features a through-hole in its body, designed for inserting a pry bar to assist with turning. 5.The top of this manual reamer rotates for easy hand-drilling. Name: Manual Model Hole Opener Drilling range:0-14mm Color: Black Material: Metal Package Contents: 1*Manual Hole Punch Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.