1. Steel thickness:0.5 2.Spring release pluger gun 3.Super hex pistol rod 4.Carbon steel handle 5.Push rod:6.6mm Item No:XC-019Size:9 "Skeleton thickness:1.8mmDiameter of rod:6.6mmMeas:44.5*29*24cmQTY:40pcsMaterial of handle:carbon steelNet Weight: 280g Caulking gun,skeleton gun sealant Applicators,seal gun,silicon gun,cartridge applicators