Wood clamps commonly use steel or cast iron for bars and main hardware. Smaller parts or accessories (pads, covers) are often plastic or ABS, and handles may be wood, reinforced plastic, or metal.
Reported throat depths range from about 2¼ inches up to 7 inches. Examples in this set include 2¼", 4¾", and 7" throat depths.
One-handed bar clamps commonly include automatic locking, a quick‑release or one‑button unlock, roughly 24" jaw openings (on many models), moderate load limits (around 300–340 lb), and the ability to convert to a spreader for reverse support.
Face clamps typically have about a 3" reach and can clamp materials up to roughly 2¾" thick. Right‑angle clamps list about a 5" reach and are suitable from thin ½" plywood up to 2x4 boards.
Load limits vary widely: one‑handed bar clamps often list about 300–340 lb, pipe/H‑style clamps about 440 lb, heavier bar clamps around 1,450 lb, and heavy‑duty F/bar clamps up to about 4,880 lb.
Large bar clamps in this set list spreading ranges from about 14 inches up to 53 inches.