Short description A 20 mm indexable insert drill body (U-drill) built for 3×D hole making on CNC lathes and machining centers. Twin insert seats, screw-through-hole clamping, helical flutes and axial through-tool coolant deliver fast, repeatable Ø20 mm holes without regrinding — you index or replace the inserts instead of the body. 1. At a Glance Model / ISO designation 880-D2000L25-03 Product type Indexable insert drill body (U-drill), right-hand cutting Cutting diameter (DC