Stanley 10 789 Twin Blade Utility Knife 7 in Overall Lg, Steel Hook Tip, Rubberized, Metal Rubber 1720489 002 in Item Slotted Shim 002 in Item Slotted Shim Rockwell Hardness RC 35 45 Manufacturer Location Made in USA* Finish Plain Material Grade Class 18 8 Tensile Strength 75 Recommended Dilution 1:100 Tyvek Blade Change Method Quick Change For Cutting Leather Yes Blade Type Included Utility For Cutting Rubber Yes For Cutting Plastic Yes Manufacturer Model Number of Included Blade 11 921 For Cutting Cork Yes Blade Positions 6 Grip Type Rubberized For Cutting Cardboard Yes For Cutting Paper Yes Blade Steel Hook Tip Includes Pocket Clip No Handle Style Ergonomic For Cutting Fabric Yes Number of Blades Stored 11 Blade Tip Hook Replaceable Blade Yes Hand Orientation Ambidextrous Tether Ready Yes Retractable Blade Yes With its double blade design and steel hook tip