Iscar - External Thread, 0.33" Max Depth of Cut, 0.11" Min Groove Width, 4-1/2" OAL, Right Hand Indexable Grooving Cutoff Toolholder - 1/2" Shank Height x 1/2" Shank Width, GI.., GPV.., TIP.. Insert Style, GHD Toolholder Style, Series Cut Grip | Apex Tool & Supply

This tool is designed for external cutting and has a right-hand holder, with a maximum depth of cut of 0.33 inches and an overall length of 4.5 inches.