The 20 yr relationship I have with my Snapon deal has never posed a problem in regaurds to hard line tool replacement. Never any questions, just repair or replacement with an equivalent piece including tools that were obsolete. If there is a problem you should call snapon in Wisc. and complain...
I don't like mine. If I torque to the set limit it it goes into a mode the you must reset the thing after each fastener is tightend and that takes longer than tightening a fastener. *****.