
1) Firewood-sizing tool 2) Tool with an H-shaped frame 3) Woodworking hand tool
Found on
https://www.crosswordclues.com/clue/bucksaw

A bucksaw is a hand-powered frame saw generally used with a sawbuck to cut logs or firewood to length (bucking). Modern bucksaws usually have a metal frame (`H` or `C`-shaped) and a removable blade with coarse teeth held in tension by the frame. Lightweight portable or foldable models used for camping or back-packing are also available. It is ...
Found on
http://en.wikipedia.org/wiki/Bucksaw
noun a saw that is set in a frame in the shape of an H; used with both hands to cut wood that is held in a sawbuck
Found on
https://www.encyclo.co.uk/local/20974

a saw having a blade set across an upright frame or bow, used with both hands in cutting wood on a sawhorse.
Found on
https://www.infoplease.com/dictionary/bucksaw
No exact match found.