Main Features:
- Suitable for a screwdriver or electric screwdriver handle tools drive sleeve and after use can be installed on the size of the original hexagonal polygons converted to square head size- Suitable for quick change 1/4 inch chuck systems or directly into the drill chuck. Change your hand socket set into a driven socket set- Spring loaded ball bearing on head holds sockets securely. Perfect for your impact driver or drill・ and allows you to replace your ratchet with a power tool- 6pcs sockets adapter set: 1/4 inch x 1/4 inch・ 50mm3/8 inch x 1/4 inch・ 50mm1/2 inch x 1/4 inch・ 50mm1/4 inch x 1/4 inch・ 65mm3/8 inch x 1/4 inch・ 65mm1/2 inch x 1/4 inch・ 72mm- Material: chrome vanadium steel CR - V