The OLFA 18mm NL-AL Rubber-Grip Auto-Lock Utility Knife is part of the Comfort Grip Series that features an anti-slip handle with an ergonomic feel all-day comfort. The cushioned rubber grip delivers maximum control and stability. The elastomer handle with poly-acetate auto-lock slider is completely acetone-resistant for easy clean up. This heavy-duty cutter boasts a stainless-steel blade channel to secure the blade in place for serious cutting. Along with tactile, audible clicks at each blade depth, the auto-lock mechanism securely holds the blade and allows for easy, one-touch blade activation. For optimal performance, this snap knife comes ready with an Ultra-Sharp Black Snap Blade - up to 25 Percent sharper than standard OLFA silver blades. Each blade offers eight (8) cutting edges for plenty of substantial cutting. When you've exhausted a blade segment, simply snap for a fresh cutting edge. Full blade changes are fast and easy thanks to a tool-free blade exchange. Accepts all OLFA 18mm blades including: L-SOL Solid Silver Blades, LWB Serrated Edge Blades, LB Silver Snap Blades, LFB Ultra-Sharp Black Speed Blades, and LH Hook Snap Blades.