1681AP4X40 46204945 UNC Machine Forming Tap No.4 x 40（1681AP4X40 46204945 UNC 机用挤压丝锥 No.4 x 40）

Thread forming tap with lube grooves Applix MXR with a 2-3xP semi-bottoming lead, for Unified National Coarse thread UNC 4 with 40 TPI and 2B class of fit, dimensions according to DIN/ANSI standard with 0.1410" shank and 0.1100" square drive, powder metallurgical HSS with TiN-Top coating for 3xD through or blind hole threading in steel and cast steel, stainless steel, wrought or cast aluminium and copper or copper alloys and titanium or titanium alloys.（挤压丝锥，带润滑槽 Applix MXR，带有 2-3xP 半底切削刃，用于统一标准粗牙螺纹 UNC 4，40 TPI，2B 配合等级，尺寸符合 DIN/ANSI 标准，柄径 0.1410"，方头 0.1100"，粉末冶金高速钢材质，TiN-Top 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 3xD 通孔或盲孔螺纹加工。）