【Scope of Application】The tapping bushing is widely used in mold manufacturing, pneumatic lathes, DIY, auto repair and other professional machine maintenance work, etc. 【High-Quality Materials】The hexagonal shank tapping bushing is made of alloy steel with high hardness and high wear resistance. The interior is a square hole and durable to use. 【Fixing Design】The square hole of the tapping bushing is inlaid with a washer, which makes the clamping firmer and can be used in conjunction with a drill. hand. 【Wide Applicability】The hex bit socket set uses a universal hex shank, which can be used for different chucks, different screwdriver bits, and drill bits. 【Complete Accessories】The hex bit socket set contains 8 standard sockets to meet different needs. This hex bit socket set will be a good auxiliary tool when you use it.