The LO Ink timber scribe is replaceing the Crawford timber scribe which has been discontinued. The 6" soild aluminum handel has two blades for making straight lines, circles and curves. The centerpoint allows for easy cutting of half or full circles. The blades are hardened and can be used in either direction. By removing 2 allen screws, one blade can be repositioned for either right or left hand cutting. The blades can be resharpend with a small hand file. Comes with extra blade and Allen wrenchs, included. Weighs 8.7 oz. Replacement blades can be purchased separately.