R. Murphy Handcrafting Knife RM. Murphy Handcrafting Knife when carving delicate pieces or especially when used in the dental lab. This fixed blade knife manufactured by the experts at R. Murphy features a 17 gauge (1.5 mm) blade with a slim shaped handle for greater balance. Specifications for R. Murphy Handcrafting Knife: Manufacturer: R. Murphy Blade Length: 1.5 in Blade Material: Steel Serrated: Plain Knife Application: Fixed Blade Overall Length: 6.63 in Handle Finish: Wood Blade Finish: Stainless Steal Quantity: 1 Package Contents: R. Murphy Handcrafting Knife R. Murphy RMHANDS: Handcrafting Knife