The Casström Field Saw allows you to open the chest cage and pelvic bone on larger game safely and quickly without puncturing the gut or making unintended damage. The teeth on the saw have been precision ground for fast and efficient cutting. The end of the blade has been rounded off and features a safety tip. The saw blade is made using a high quality stainless blade steel that makes the saw very durable but also easy clean in a hygienic way. The handle and saw blade has been designed in a unique way to allow the blade to be replaced if needed in the future. The handle is made from precision milled, impact resistant and weatherproof G10 laminated glass fibre. This material does not absorb any blood or liquids and is very strong and durable. The saw comes with a sturdy Cordura nylon belt pouch and is delivered in a black box. The steel used for the blade has been carefully selected and tested to meet high standards set for cutting efficiency as well as strict hygiene criteria for handling food. The steel has been heat treated to achieve a hardness of approx. HRC 56-59. The composition of the steel can be found below: C             Mn         Cr            Ni            V             Mo0.80%    0.40%    13%        0.20%    0.10%    0.15%To change the blade, simply unscrew the four security screws/bolts, separate the two handle scales and replace the blade. Please note that the three screws closest to the blade will only unscrew from the front of the handle (with Casstrom logo facing you) as the bolts inserted from the back are fixed in their position. The fourth screw and bolt at the end of the handle may require two allen keys/hex tools to be undone.