This premium scrub plane by Ulmia features a sole made from Ironwood. Ironwood is extremely hard and has a self lubricating quality which make it glide very easily over the work. The Scrub Plane is useful in processing very rough or uneven surfaces in preparation for further planing with a Fore Plane / Jack Plane (See Ulmia Short Jointer or Kunz #5 Plus) . The convex cutting edge of the iron removes material quickly when using diagonal strokes. It is also useful for texturing and distressing wood surfaces. The iron is adjusted by means of a wooden wedge. Simply tap the iron for a deeper cut, or tap the strike plate on the heel for a more shallow cut. 33mm (1 5/16") single iron, 45° cutting angle, 240mm (9 1/2") X 49mm (1 7/8") Red Beech body, Ironwood sole. Wooden hand planes are a viable alternative to metal planes with mechanical adjusters. In a world full of metal planes, The Ulmia wood body planes provide elegant simplicity by providing time tested designs coupled with modern manufacturing methods and materials. Before metal adjusters, plane irons were adjusted to very precise tolerances by a simple tap of the iron for a deeper cut. A tap on the heel of the plane reduces the cut. This simple process is still in use around the world and preferred by many craftsmen as an alternative to mechanical adjusters. Wooden planes are also easier to tune and maintain than their metal counterparts and use simple woodworking skills and tools.