4 cutters wood  cut auger drill bit 10 to 25mm carpenter joiner tools<br /><br />specification:<br />material:steel<br />diameter of head:10mm，12mm，14mm，16mm，18mm，20mm，22mm，25mm<br />diameter of shank:7mm<br />blade length:7mm<br />total length:165mm/6.49''<br />flute:4<br /><br />features:<br />durable and practical<br />application material:wood，plastic，aluminum plate etc<br />suitable for diy， home and general building/engineering using<br /><br />note:please let know which type you prefer，or we will sent randomly. thank you for understanding! <br /><br />package including:<br />1 x 4 cutters wood  cut auger drill bit