Amazon has IRWIN Tools QUICK-GRIP C-Clamp – 1 1/2-inch Throat Depth on sale for $1.75. Shipping is free for Prime members.
- Quick-grip C-Clamp, 1-1/2 in, 1-1/2 in throat depth, steel
- Manufactured in Canada
- 1-1/2-inch opening with 1-1/2-inch depth capacity and full closing screw
- Steel screw has special smooth "rolled" threads, revolves freely and fastens securely
- Steel sliding-pin handle
- Frame has bright plated finish with machine-ground anvil
QA Note: Usually ships in 1-2 months