The ECE #741 English Pattern Jack Plane features a Hornbeam body, Ironwood Sole, and the excellent “Primus” adjustment mechanism. The “Primus” iron adjustment mechanism is all metal and expertly made. Simply turn the adjusting knob clockwise for a thicker shaving and counter-clockwise for thinner. There is no backlash or slop in the system due to a large spring in the heel which keeps tension against the adjuster. The Body and Sole are joined using ECE’s patented toothed and glued joint. The hard Ironwood sole has a slippery self lubricating quality which allows it to glide over your work better than any metal plane can. The #741 is lighter than it’s metal equivalent, making it easier to use. It’s long 15 1/2 inch length makes it perfect for jointing work and flattening surfaces. The 48mm (1 7/8″) Chrome Vanadium Steel iron is fitted with a chipbreaker and is bedded at 49 degrees. Iron is machine sharpened and ready to use, final honing is recommended for best performance. Hardness is Rc62. Made in Germany. This is a professional grade tool which carries a full lifetime warranty. Made in Remscheid, Germany by 5th generation toolmaker E.C. Emmerich.