【630 Stainless Steel】 Crafted using CNC machining and 630 stainless steel, our Deep Socket Pentagon Wrench offers superior strength and rust-resistant properties with precise dimensions 【Specialized Design】 Our Penta Socket Wrench tool has an outer diameter of only 1-1/8 ", making it effortless to reach pentagonal bolt heads embedded in deep wells. With an inner diameter of 13/16", its 5-point rounded tip design ensures no wear to the penta nut 【Use for】Lineman Wrench use for 1/2-13 penta head bolt on pad-mounted transformers and secondary pedestals; Penta Wrench use for standard pentagon bolts on water meter pit cover; Please check the size before purchasing 【Anti-lost D-Carabiner Ring】Our T-Handle Penta Socket Wrench is designed with an anti-lost carabiner, which makes it easy for you to hang the tool on your waist and carry it around. When you don't need it, hang it on the tool wall for easy storage and to be able to find it at the first time 【Package Include】1×T-Handle Penta Socket Wrench with Anti-lost Carabiner 630 Stainless Steel: Crafted using CNC machining and 630 stainless steel, our Deep Socket Pentagon Wrench offers superior strength and rust-resistant properties with precise dimensions