Secure tongue and groove design for a non-slip grip even with heavy pressure. Insulated handles have small thumbguards for easy handling and storage. Unique three-part insulation has a white underlayer to provide warning if insulation has been compromised. Meets or exceeds ASTM F1505 and IEC 60900 insulated tool standards. 1000V rated and VDE certified. Max jaw capacity: 1-3.4”; 10-1/4” OAL. Made in the USA.