Check the listing for details. WoodRiver Portable Drill Guide. Condition: New. Listed at 248.98 USD. WoodRiver Portable Drill Guide, 194999, Smooth sliding plunge action with virtually zero play, Smooth ball bearings in chuck housing for efficient transfer of power, Drill attaches to the quick-change compatible 1/4" hex shank on top, Included metal pins attach to base so the Drill Guide can be centered on board edges, Achieve drill press precision with the portability of a hand drill using the WoodRiver® Drill Guide. Engineered for smooth, precise operation with virtually zero play, this versatile tool delivers exceptional accuracy and control. Simply attach your drill to the 1/4'' hex shank, and you're ready to tackle any project. The robust handle, with a comfortable rubber casing, provides a substantial feel, while the heavy-duty 1/2'' chuck securely grips large bits with ease.