Machine Design

Scanning for ideas: Torque for fastening and unfastening

The 2135Ti-2 Impactool impact wrench from Ingersoll Rand, Montvale, N.J. (, weighs 3.95 lb but puts out 1,100 lb-ft of nut-busting torque, giving it the highest power-to-weight ratio of any similar hand tool.

Edited By Stephen J. Mraz

It can deliver 1,250 blows/min or spin at up to 9,800 rpm (free speed). Users can choose between four torque levels. The tool is said to incorporate technology that makes it quieter than similar tools, producing 109.2 dBA when operating.

Circle 401

TAGS: Fasteners
Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.