Nitto Kohki QA-4000 Automatic Drill (1-9/16″ x 1-3/8″ Hole Capacity)


Model QA-4000
Power Source (single phase) 110-120 V AC 50/60Hz
Rated Power Consumption 680 w
Rated Current 6.1 A
No Load Speed 750 rpm
Magnet Power Consumption 50 w
Hole Diameter Capacity 1-9/16″ Max
Depth of Cut Capacity 1-3/8″ Max
Magnet Holding Power 1,498 lbs
Magnet Dimensions 3-1/4″ x 6-13/16″
Weight 41 lbs
Included Accessories
  • UEA0835-0 pilot pin 5/16″ x 1-3/8 ” DOC
  • 3 & 4 mm allen wrench
  • 8 mm x 10 mm combination spanner
  • motor side handle
  • sample cutting fluid
  • safety chain
  • Tool Box

QA 4000 Spec Sheet

SKU: QA 4000 Category:


The Nitto Kohki QA-4000 Automatic Drill exponentially increases productivity and slashes drilling cost!

QA-4000 Features at a glance:

  • Color Display: This model of Nitto Kohki drill comes fitted with a load detector display. This shows the amount of resistance on the cutter at any time!
  • Technology: The feed speed on this automatic machine is controlled by an on-board microcomputer, automatically adjusting to the load’s size and condition!
  • Automatic Stop: The feed motor will stop automatically to protect the equipment when an abnormally large load is placed on the cutter!
  • Feed: This drill features a fully automatic feeding system, allowing you to bore more holes quickly!
  • Efficient: The automatic nature of the drill allows users to operate multiple drills at once!

Finally, the QA-4000 comes equipped with a magnetic base and multiple safety features! Some of these features include non-accidental restart technology and a motion detection system!

Stud Welding Products offers a 1-year limited warranty on all Nitto Kohki Drills! Each purchase includes a convenient carrying case and sample cutting fluid. Click here to see Nitto Kohki drills in action!

Not What You’re Looking For?

See our full line of Nitto Kohki Automatic Drilling Machines here and click here to view a short blog on the benefits of automatic drills! For our cutters, click here.


If you have any questions about this product or others, email us at or call our office at 800-252-1919 and we will get back to you as soon as we can!