Description : SINGLE NEEDLE DISPLAY : Mortice Single needle display suitable types of underlining . STURDY MATERIAL : Our mortise s are made of ebony and copper , which are strong , hard , durable , rust proof be used for a long time . ROTARY HANDLE : Rotate the handle to adjust the distance between thetwo . Fastening screwsFast and reliable , screw . MULTIPURPOSE : This ruler can draw s , with a large adjustment range , suitable for amateur carpenters , mainly used for marking , scribing , arranging on various joinery or other wood products . NOTE : The needle is sharp , do not touch . This Woodworking scribe is only suitable for use of wood . Can not be used materials other than wood , otherwise it may beirreversibly damaged . Specification : Material : Wood + Copper Size Chart : Overall Length : 220mm / 8 . 66inch Card Wood : LxW : 27x57mm / 1 . 06x2 . : 23mm / 0 . 91inch Copper Tail : 78m / 3070 . 87inch Wood Width : 18mm / 0 . 71inch Package Includes : 1x Woodworking Mortice Note : 1 . Please allow slightly error due to manual measurement . 2 . Due to between different monitors , the picture may not reflect the actual the item . 3 shopping !