16414-40H3 1712221 UNC 机械成型丝锥 No.4 x 40

Thread forming tap with lube grooves with a 1-2xP bottoming lead, for Unified National Coarse thread UNC 4 with 40 TPI and H3 pitch diameter limits, dimensions according to ANSI standard with 0.1410" shank and 0.1100" square drive, powder metallurgical HSS with TiN coating for 3.5xD blind hole threading in steel and cast steel, stainless steel, wrought or cast aluminium and copper or copper alloys and titanium or titanium alloys.（螺纹成型丝锥，带润滑槽，1-2xP 底部引导，用于统一标准粗牙螺纹 UNC 4，40 TPI，H3 中径公差，尺寸符合 ANSI 标准，0.1410" 刀柄和 0.1100" 方形驱动，粉末冶金 HSS 材质，带 TiN 涂层，适用于在钢和铸钢、不锈钢、锻造或铸造铝和铜或铜合金以及钛或钛合金中进行 3.5xD 盲孔螺纹加工。）