As of March 2021, Sioux's Threaded Drill Motor is NEW & IMPROVED and better than ever!

Sioux's classic Threaded Drill Motor has been completely updated with the Signature Series treatment and offers the latest in ergonomics, durability, and power! The predecessor to this drill (the 1AM1551) has been the standard in the aviation industry for well over a decade with tens of thousands of drills in service throughout the industry. With the new improvements and our low pricing, now is the time to UPGRADE to the latest model and technology. Made in the USA!

This great Combo/Package Deal includes a model SDR4A33S8L   - 90º Threaded Drill with Standard Head - 3300 RPM AND a model SP75994 Interchangeable 45º Head - So you end up with one motor with a 90º Head and a spare 45º Head - all for one discounted combo price!

• Full .4 HORSE POWER motor package - higher power and stall torque than the predecessor model giving you 33% MORE POWER!
• Heads are now truly quick-change - you can replace the head with a different style in literally seconds, simply unscrew the installed head, and reinstall the new head. You can buy extra heads (45º, 360º, Low-Profile 90º, or Heavy-Duty 90º and use them all on one motor!)
  
• Three-planet gear system for durability & long life.
  
• State of the art Spiral Bevel Gears for long life & durability.
  
• 3300 RPM
• Only 9.5" long!  Weighs just 1.92 lbs.
• Excellent, TEASING throttle trigger for smooth starts!
  
• Standard 90º Head gets into tight areas with a head height of 1.11"
• The 45º head also has a head height of 1.11"
  
• Industry-standard 1/4-28 Threads.
  
• Integrated ergonomic rubber grip for superb comfort and control.
  
• Made in the USA by Sioux Tools (a division of Snap-On!)

Order Model #   SDR4A33-9045       
Sioux .4HP Signature Series 90º Threaded Drill Motor, 3300 RPM  With an Interchangeable 45º Head.


Don't forget...we offer FREE ground shipping within the USA for orders over $95 that are pre-paid with a credit card. (And now, this includes Alaska, Hawaii, & APO/FPO addresses!)

As one of the largest authorized Sioux distributors in the world, we are committed to offering the absolute best price on any Sioux tool that we stock - in the very unlikely event that you find a Sioux model in stock and for sale at a lower price at any other authorized Sioux distributor, let us know and we will beat that price - period. We constantly monitor our competitors to make sure that we are offering the best value so that you can buy from us with confidence.