The Stanley Interlock Snap-Off Blade Knife has a die-cast metal body that is solvent resistant. The durable patented wedge lock action holds the blade securely in position. A simple finger screw action operates the locking mechanism. Suitable for heavy-duty cutting. The knife can be opened and cleaned, making it ideal for applications where material build-up is a problem. Available Sizes: 9mm and 18mm. 1 x Stanley Interlock Snap-Off Blade Knife 9mm.