1/4" and 5/16" Hex Micro Bit Ratchet with 1/4" Square Drive. Size marked on ratchet. Works with all 1/4 in. hex bits and 1/4 in. drive sockets. The smallest, lowest profile head in the industry. The quick disk on the drive head allows for quick tightening or loosening of fasteners when ratcheting is not required.
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