Jaws adjust to tightly secure taps from #6 to 1/2 taps. 3/8 square drive compatible with common ratchets. Small profile for use in tight workspaces. Knurled ring twist to adjust for quick fit. 2 piece set for greater versatility Both adjustable tap sockets are 3/8 drive, one fits #6 through 1/4 taps and the second adjustable socket fits 1/4 through 1/2 taps. This Irwin innovation allows the easy use and changing of various sizes of taps.
