Push-Button Blade Change with One-Handed Operation - swap blades quickly and easily with just one hand. SAWSAFE Lock System - specially engineered to secure the interchangeable saw blade during push/pull action, for safer sawing. Versatile Blade Set - includes 4 blades plus a saw: 3 utility blades, 1 half-serrated utility, and 1 interchangeable utility saw, all compatible with 300 & 301 blade sizes. Multi-Tool Back Spacer Built-In - functions as scraper, pry tool, and screw driver; plus there&&';;s a blade storage pod and micro-clean-out brush for maintenance. Sturdy, Field-Ready Build - 3.0" Japanese 420J2 steel blade, stainless steel frame, blue anodized aluminum scales, polycarbonate/ABS blade pod; weighs 4.9 oz.