
If you want to talk about your project, call us. We'd really love to help!
Ask an Engineer 

Use our Ask an Engineer Form for technical questions regarding our custom products, secondary operations, stock products, your application, or the integration of both. Our team of Application Engineers are here to assist you with any inquiries you may have.
Customer Support 

If you have questions about billing, a shipping,or any other general question use our Contact Us Form.
Technical Support 

Use our Technical Support Form for questions regarding your online account (i.e, changing your password) or if you're experiencing problems with our website.
Submit an RFQ 

An RFQ for a Stock or Custom product.
An RFQ for precision tooth cutting.
You can request a quote on any of our products. Please provide us with the part numbers you would like to get a quote on and how many you would like.
An RFQ for precision tooth cutting.
Send Us Your Blanks! Precision Tooth Cutting – 3/16” to 4” OD. We provide fast turnaround on cutting and deburring, fine pitch to medium pitch: gears, pulleys, worm gears, bevel gears, helical gears, while meeting your exact specifications.
Phone: 1-800-819-8900
Address: 250 Duffy Ave., Hicksville, NY 11801
Email: sdp-sisupport@sdp-si.com
Address: 250 Duffy Ave., Hicksville, NY 11801
Email: sdp-sisupport@sdp-si.com
Hours of operation: Monday - Friday / 9am EST. - 5pm EST.
Holidays (Closed): Christmas Eve thru New Year's Day
Contact your local sales representative
Holidays (Closed): Christmas Eve thru New Year's Day
President's Day
Memorial Day
Independence Day
Labor Day
Thanksgiving Day & Day After
Memorial Day
Independence Day
Labor Day
Thanksgiving Day & Day After
Sales Reps 

Contact your local sales representative
We're Hiring 

We're looking for talented people to join our team. Visit Our Careers Page to find out what positions are available.
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