phone  (937) 890-5197

Shopsmith Speed Reducer and Speed Increaser

Save $37.25 - Order By Tuesday October 17th at 11:59 PM EDT!

Slow Your Mark V To 100 RPM For Drilling, Sanding Or Turning With Shopsmith's Amazing Speed Reducer

Shopsmith Speed Reducer - as slow as 100 rpm for large diameter turning Shopsmith Speed Reducer - Great For Large Forstner and Multi-Spur Bits

Now, you can:

  • Use Forstner Bits, hole saws and multi-spur or clockface bits to bore large diameter holes without fear of burning your workpiece or bits
  • Sand on the Lathe, Disc Sander or Drum Sander without creating unsightly, difficult-to-remove burn marks
  • Cut, sand or grind metals and plastics with your Mark V or special purpose tools
  • Create heavy and/or oversized faceplate or spindle turnings using the Mark V's lathe function

Selecting the right tools to do the job is the key to achieving professional woodworking results. You already know that the Mark V provides the appropriate operating speed for nearly every woodworking task. Now you can expand its capabilities to even higher levels with the amazing Shopsmith Speed Reducer !

Designed for use on the Mark V Models 500, 505, 510 and 520, the Speed Reducer provides a 7:1 speed reduction ratio. So, instead of its usual 700 to 5200 rpm speed range, your range increases to 100 to 5200 rpm. As a result, you can now perform even more operations while improving safety and increasing your ability to achieve top-quality results.

With the Mark V set at its lowest speed setting of 700 rpm, the Speed Reducer output spindle will be turning at only 100 rpm! As you increase the speed of the Mark V, the Reducer's rpm also increases at a 7:1 ratio. This provides new levels of speed reduction for whatever operation you are performing - turning, sawing, drilling or boring

Now, you can drill metals, plastics and large diameter holes in the hardest woods with the Shopsmith Speed Reducer. Use Forstner bits, hole saws and large multi-spur or clockface bits with improved results, added safety and less burning of the bit or the workpiece. Also helpful for fine sanding on the lathe, disc or drum sander... and for large diameter turnings. Attaches at three points to the Mark V's spindle and its two way tubes for vibration-free operation. A valuable shop addition !

Rugged Cast Aluminum Housing For Quality and Durability


  • 3 Point Clamping (adapter assembly attaches firmly to the quill and around way tubes) for sturdiness and stability
  • Rugged Cast Aluminum Housing For Quality and Durability
  • Reverse Tapered Spindle Flat For Added Safety
  • Internal Mechanisms Allow for 100-700 RPM At Speed Reducer Output Spindle (Double Poly-V belt drive system is positive in its action and designed to last)

Watch This Online Video

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Shopsmith Tools in Action

Turning Bowls From Burls

555428 Shopsmith Speed Reducer ...   $372.53

Increase Your Mark V's Speed To 10,000 rpm For Routing and Shaping

Turn Your Mark V Into An Even More Efficient Routing and Shaping Tool

Shopsmith Speed Increaser

The Shopsmith Speed Increaser will turn your Mark V into an even more efficient routing and shaping tool than it already is... saving your time and giving you smoother, cleaner cuts.

Designed for use with use with all Mark V Models (model 500, 505, 510 or 520), the Speed Increaser will deliver a full 10,000 rpm at your Mark V's "V" speed setting. As a result, you'll have to make fewer passes with your stock (especially when cutting full profiles) and spend a lot less time sanding, too.

The Increaser's under-table design also provides another advantage by allowing you to perform table routing and shaping operations in a more conventional fashion, with the bit cutting safely under your workpiece.

The special see-through Speed Increaser shield (included) hooks to your DC-3300 dust collector or a shop vacuum and does an amazing job of capturing flying dust and debris.

Durable Cast Iron Housing • 3-Point Clamping • Dual Spindle Guards


  • 3-Point Clamping (at quill, coupler and support bracket assembly) provides for more accurate cutting results and enhances stability
  • Dual Spindle Guards for Additional Safety
  • Internal Mechanisms Allow for 10,000 rpm at Speed Increaser Output Spindle
  • Cast Iron Housing Provides for Quality, Durability, and Dampens Noise and Vibration

Includes: Speed Increaser • Shield • 1/2-inch Shaper Spindle with four sizes of (non-bearing) Rub Collars and • All Mounting Hardware for the Increaser and Shield

555462 Shopsmith Speed Increaser ...   $479.99

Speed Increaser Accessories

555472 Shaper Spindle with Ball Bearing Rub Collars ...   $39.53

555475 Speed Increaser Fence (Mark V Models 505 510 520) ...   $124.96

555474 Speed Increaser Fence (Mark V Model 500) ...   $124.96

Order on the Web or by Phone, if you prefer -- 1-937-890-5197.

Call before 4:30 PM Eastern Time

Give your Shopsmith representative the code 7DV098 when calling.

This Offer Ends 11:59 PM EDT Tuesday October 17th


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