What this is

A compact, one-handed trigger-style clamp that also reverses to work as a spreader, at a shorter 6" clamping capacity than the 12" clamps in our trigger clamps comparison. Craftsman is a brand not previously covered on this site.

Full specs

SpecValue
Model9-31481
Clamping capacity6"
Throat depth2-1/2"
Spreading capacity6" to 12"
Weight1.15 lb
StyleOne-handed trigger
MaterialNot published in the listings we checked
Clamping forceNot published in the listings we checked
ASINB007KHCXLU

Source: matching specs across Amazon.com and Amazon.ca listings, cross-checked against upcitemdb.com’s UPC record (025104345680) for the same product — consistent on clamping capacity, throat depth, spreading range, and weight.

Craftsman 9-31481 Bar Clamp and Spreader (6")

Not published in the listings we checked · 6" clamping capacity · 2-1/2" throat depth · 6"–12" spreading capacity · 1.15 lb · one-handed trigger style

A shorter, lighter clamp than the 12" trigger clamps in our comparison — sized for smaller parts and tighter spaces rather than general assembly work.

View Price on Amazon

Who this is for

Small-parts assembly and tight spaces where a full 12" trigger clamp is more reach than you need — the 6" capacity and 1.15 lb weight make it easier to maneuver one-handed in cramped spots.

Who this isn’t for

General assembly or larger glue-ups, where the 12" reach and published 300 lb force rating of the Bessey EHKL12 or Irwin 1964718 in our trigger clamps comparison cover more ground. This Craftsman model also doesn’t publish a force rating at all, so you can’t compare it on that spec directly.

Bottom line

This is a retailer-cross-referenced spec writeup, not a hands-on test. On paper it’s a smaller, lighter trigger clamp for compact work, with one real spec gap (no published clamping force). Craftsman 9-31481 if 6" capacity covers your smaller work.