... Sheet thickness 1.2 mm, 9" big aluminum handle rotating caulking gun with high qualityIron Sheet thickness ... mm,round bar steel 7.8 mm,aluminum handle iron trigger,powder metallurgy propulsion block Namesoft glue ... mm, round bar steel 7.8 mm, aluminum handle iron trigger, powder metallurgy propulsion blockG/N(KG) ... (adhesive, sealants, fillers, etc. 9" aluminum handle rotating caulking gun for silicon