Application. The tap die socket adapter is used for machine taps, and is suitable for wind batches, electric batches, electric drills, etc. Safe Clamp. The square head of the adapter with the built-in clip in the sleeve is driven, so that the tap die and the socket adapter are firmly connected, and it is not easy to fall off. High Concentric Rate. The tapping chuck with a 1/4 inch hex shank meets the requirements of machine taps of the same size. High Concentric Rate. high Strength. The tap die socket is made of alloy steel, and the tap material is high-speed steel. High strength and is not easy to wear. Make it work smoothly. HSS Machine Tap. The tap with easy tapping and low resistance.Suitable for processing iron, aluminum, plastic, wood and other materials. Material:alloy steel colour:Black Package Contents: 6 x Tap Socket Adapter(M4/M5/M6/M8/M10/M12) Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.