The champs are being held at Invercargill's ILT'Stadium Southland next Wednesday to Saturday, February 8-11.
Of the 60 shows on the Shearing Sports New Zealand calendar during the season from the end of September to Easter in mid-April, Reefton is one of nine to include bladeshearing, and offers the only competition opportunity for competitors in New Zealand ahead of the championships.
Machine shearers and woolhandlers looking for a similar hit-out were expected to target the Otago championships in Balclutha on Friday and Saturday, February 3-4.
Reefton will also feature machine shearing, on lambs, in the Open, Senior, Intermediate and Junior classes.
Sam Win, of Ikamatua, said bladeshearing entries at Reefton usually total about eight, but, while nothing is certain until the day, he's making arrangements to cope with more than 20 this year.
The machine-shearing event at Reefton has had an unusual recent history in that it has been won four times in the last five years by competitors from overseas, including defending champion and New Zealand-based Australian shearer Peter Berkelaar.
Shearing at Reefton starts at 9.30am on Saturday.