Rivet construction with precision machined joint interlock assures smooth, positive joint action, no chance of slipping position or coming apart under load Self-locking jaw opening adjustment and 6 different jaw positions for flexibility and comfort Alloy steel construction with induction-hardened teeth for maximum durability and black oxide finish to prevent corrosion Long handles provide additional leverage Secure grip from the single-dip handles that easily wipe clean, Manufacturer: Apex Tool Group