The Cementex Square Drive T-Handle Wrench Ratchets, Nos. IR14-TW and IR38-TW, are double insulated and available with either 1/4" square drive (No. IR14-TW) or 3/8" square drive with X-Drive (No. IR38-TW). The design allows users to build their own T-handle tool to fit their needs and can connect with extension bars, sockets, bit sockets, and DriveHandle nut drivers. The ratchets comply with the IEC 60900 standard and ASTM F1505 standard, are tested to 10,000 VAC, and are rated for 1,000 VAC/1,500 VDC when working on live parts.