550 South Third Street
Winsted, MN 55395

ITH Hammer Top Drive Subs –  Stabilizers – Fishing Tools

DPI uses premium-quality American-Manufactured Alloy Steel, and employs the latest technology – utilizing CNC Lathes operated by our expert machinists. We cut most all standard threads, and even custom design threads. Break out wrench Flats Configurations are precision milled on our 5-axis CNC machine centers. We machine to OEM specification, or custom. Common connections are No. 21, 24 & 28 – with Beco, Mission, and API.

ITH Stabilizers

We manufacture both Integral and Welded Stabilizers. Our ITH Stabilizers are armored with Tungsten Carbide on Wear surfaces – We design extra-length wear pads as a Standard feature.

Chart showing sizes from 4.50 to 6.50 with Shoulder-to-Shoulder lengths:

Hole SizeLength S/SRibs
4.5010 inch4
4.5016 inch4
4.5048 inch4
4.5060 inch4
4.5072 inch4
4.5010 inch4
4.5016 inch4
4.5048 inch4
4.5060 inch4
4.5072 inch4


ITH Fishing Tools

Overshot or Taper Taps to reclaim lost tooling – We will respond to your needs with a sense of urgency.