NT Cutter Aluminum Die-Cast Grip Multi-Blade Cartridge Knife (A-1000RP) Standard duty snap off blade utility knife Multi-blade cartridge / Accommodates up to 5 blades Blade Size: 9mm Features an automatic blade lock Aluminum die-cast grip / Electrical-acrylic metal coated / Made of recycled materials Stainless steel blade-sliding-track / With triangle blade snapper # of blade included: 2 Replacement blade: BA-160, BA-50P (BA-50SS, BA-51P, BA-53P and BA-40000-ON are also applicable)