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POWERTEC 8-Inch Hold Fast Clamps for 3/4-Inch Bench Dog Hole, 2-Pack

Traditional holdfast locks with a single mallet blow to the post -- faster than any screw clamp

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 3 min read

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POWERTEC 8-Inch Hold Fast Clamps for 3/4-Inch Bench Dog Hole, 2-Pack
Best Overall

POWERTEC 8-Inch Hold Fast Clamps for 3/4-Inch Bench Dog Hole, 2-Pack

POWERTEC

Traditional holdfast locks with a single mallet blow to the post -- faster than any screw clamp

  • Traditional holdfast design
  • Ductile iron body
  • Fits 3/4-inch bench dog holes
  • One-mallet-blow setting

Pros

  • Traditional holdfast locks with a single mallet blow to the post -- faster than any screw clamp
  • Ductile iron body transmits the holding force to the bench with no mechanical adjustment
  • Releases instantly with a mallet blow to the side of the post
  • A fast way to secure a workpiece for hand planing, chiseling, and carving

Cons

  • Requires a thick bench top (minimum 1.5-3 inches) for the lever arm action to work
  • Does not work well in th in bench tops or MDF bench tops
  • Learning the setting technique takes a session or two
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