Quickly restores twist to pre-stripped stranded conductors. Just insert wire into rotating guide and withdraw.  Standard guide sleeve is drilled to .046" which enables the smaller size wires to be twisted. Guide sleeve may be drilled to accommodate your requirements.
AWG      Drill Size
13–14    .089"
15–19    .079"
20–24    .046"
Model 25D comes equipped with three guide spacers in 1/8", 1/4", 1/2" widths to permit twist lengths up to one inch.