The Sunex 9138HSM 8-piece 1/4 in. and 3/8 in. Drive Metric Chrome Stubby hex Bit Socket Rail Set includes sizes from H3 to H10. Each bit is finished with zinc phosphate to protect against corrosion with high visibility markings for fast identification. The chamfered drive end allows the ratchet to be quickly guided into the socket and better protects both the socket and ratchet over time. All of this ensures our sockets professional-level performance， conveniently stored on an aluminum anodized rail for easy transportation.
- Chrome sockets to reduce rust and corrosion
- Bits are finished with zinc phosphate to protect against corrosion
- High visibility markings for fast identification
- Aluminum anodized rails for easy transportation and storage
- Chamfered drive end allows the ratchet to be quickly guided into the socket and better protects both the socket and ratchet over time
- Nylon socket holders for each socket on the aluminum anodized rails keeps them secure during storage and transportation
- Set includes 1/4 in. drive H3， H4， H5 and H6. 3/8 in. drive H7， H8， H9 and H10
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