SDP/SI Expands Product Line with New Machine Tool Sleeves

Now Available: Square Hole Sleeves and Hex Hole Sleeves

HICKSVILLE, N.Y., May 28, 2025 /PRNewswire/ -- Stock Drive Products/Sterling Instrument (SDP/SI), a trusted U.S. manufacturer of precision gears and high-quality mechanical components, is pleased to announce the addition of new stock items to its online store. The expanded product range now includes Square Hole Sleeves (threaded and unthreaded), as well as a new series of Hex Hole Sleeves, reinforcing the company's commitment to meeting the needs of machinists and manufacturers.

The new sleeves are engineered for durability, precision fit and compatibility with a variety of tools and machinery. The Square Hole Machine Tool Sleeves are available in two options, threaded, part series A 7C19-T…GB and unthreaded, Part Series A 7C19-P…GB. These sleeves are ideal for torque transmission and secure tool holding. The Hex Hole Sleeves, part series A 7C20-..GB, offer strength and stability and are available in lengths ranging from 2 – 5 inches. All sleeves are manufactured from 12L14 steel, ensuring reliability and long-service life.

"These new additions reflect our ongoing focus on customer feedback and our dedication to providing high-quality solutions that meet their needs," said Simon Brazier, Director of Sales of Designatronics. "We're proud to offer an extensive range of components that enhance manufacturing versatility and efficiency while streamlining the supply chain."

The new sleeves are available for purchase on the SDP/SI online store at https://shop.sdp-si.com. For volume pricing or custom solutions, please contact our sales team directly.

About Stock Drive Products/Sterling Instrument (SDP/SI) a Designatronics company

Stock Drive Products/Sterling Instrument (SDP/SI), ISO 9001:2015 + AS9100D certified, provides engineering, state-of-the-art manufacturing, assembly and customized solutions for critical motion control and small power transmission applications. Over 100,000 standard inch and metric small mechanical components are available for fast turnaround. Established in 1950, Designatronics, Inc. manages its brands, SDP/SI, QBC-Quality Bearings & Components, and QTC Metric Gears, to develop comprehensive mechanical and electromechanical solutions that optimize value in the global markets that are served.

SDP-SI News Release 055, 5.29.2025
250 Duffy Avenue, Hicksville, NY 11801 (516) 328-3300 www.sdp-si.com

SOURCE SDP/SI