Quick Overview Our line of popular arm-reamer now avaliable with the latest Black-Golden honeycomb design. A hollow aluminium light weight handle, combine with titanium-nitrde coating reamer, with clear size marking make this an essential tools for the serious builders. The tips are 120mm in length. 3.5mm, 4.0mm pin reamers are also available. Source Arrowmax: http://www.arrowmax-rc.com/am-490021-bgarm reamer 3.0 x 120mm black golden.html?___SID=U