Workholding · 7 min read
Bench dogs vs hold-down clamps: when to use each
Bench dogs resist sideways movement; hold-down clamps apply downward pressure. Learn where each works best and when combining them produces the safest setup.
By SQUAREFORGE Shop Desk · Updated
Key takeaways
- Bench dogs act as stops and work best when cutting or planing pushes stock sideways.
- Hold-down clamps keep a part flat during routing, drilling and assembly.
- Using a dog as a stop and a hold-down for pressure controls movement in two directions.
Different tools for different forces
| Tool | Controls | Best examples |
|---|---|---|
| Bench dog | Horizontal sliding and rotation | Planing, sanding and repeat stops |
| Hold-down clamp | Lifting and vertical movement | Routing, drilling and carving |
| Both together | Horizontal and vertical movement | Small parts and high-control setups |
Match the hardware to the bench
Measure the dog-hole diameter and top thickness. A dog that is undersize can lean; a hold-down without enough shaft travel may not lock against the underside of the hole.
Build a stable setup
- Place the stop firstPut the dog on the side that receives the cutting or planing force.
- Clamp away from the cutKeep the hold-down clear of the tool path and close enough to reduce vibration.
- Test by handPush and twist the work in every direction before starting the tool.
Workholding checklist
| Frequency | Tasks |
|---|---|
| Before glue-up | Dry-fit clamps and confirm reach and pressure points |
| During assembly | Check squareness under clamp pressure, not just before |
| Periodically | Inspect clamp pads and dog holes for wear |
/ Frequently asked
Can bench dogs replace clamps?+
Only for operations where the force keeps the work on the bench. Routing, drilling and carving often need downward clamping as well.
What dog-hole size should I buy?+
Measure the actual hole. Common systems use 3/4 in. or 20 mm hardware, and they are not interchangeable.