The NSK Evolution 1/4 speed reducer is what you need to reduce speed and gain torque on the heavy duty attachments and right angle attachments where your gears have to work harder. The Nakanishi speed reducer attaches to your motor and your attachment screws onto it. The speed reducer will save on both your attachments and keep from overtaxing the motor.
NSK Evolution 1/4 Speed Reducer Features:
Weight is 2.4 oz
30,000 rpm max operating speed.
Speed reduced to 1/4
Torque increased 4x.
Wrench is included.
The Nakanishi made Evolution 1/4 Speed Reducer is a must for proper operation of some of the Evolution attachments. Take advantage of this revolutionary technology. All NSK items are made and branded by Nakanishi of Japan. Nakanishi is the parent company of NSK America.
Please note that the NSK Evolution Ring Type Hand-Piece Attachment can be used with the Evolution motors and interchanged with other Evolution Handpieces. An adapter is available to run this handpiece on the NSK Espert if you have upgraded to that unit. It will not fit other brands.