Schaller M-6 3+3 Guitar Machines

  • 8 Reviews
  • Write a review
Buy more, save more!
Schaller M-6 3+3 Guitar Machines Chrome


Item # 0643
In stock, ready to ship!


3 or more $60.47
Schaller M-6 3+3 Guitar Machines Black


Item # 0643-B
In stock, ready to ship!


3 or more $62.66
Schaller M-6 3+3 Guitar Machines Gold


Item # 0643-G
In stock, ready to ship!


3 or more $116.24
Schaller M-6 3+3 Guitar Machines Gold, ebony knobs

Gold, ebony knobs

Item # 0640-G
In stock, ready to ship!


3 or more $130.16
Scroll to Top

Schaller M-6 3+3 Guitar Machines

About This Item

High quality machines with 12:1 ratio, sealed lubrication, adjustable knob tension, cast housings, threaded hex peghead bushings and removable metal knobs.

All Schaller M6 tuners require 10mm (13/32")-diameter pegholes. Sold in sets of 6, with mounting screws, threaded bushings and washers included.

Installation Tips

Mounting screws: Pilot holes required. Installing delicate screws into hard wood requires great care and accuracy. We highly recommend the #1713 Depth-stop Drill Bit (No.44 bit) for the pilot hole before installing these screws. Lubricate the screw threads with cutting lubricant (also wax or a bar of soap) to reduce friction and help them thread properly.

    • Item #
    • Weight
    • 0640-G
    • 0.548 lbs. (0.25 kg)
    • 0643
    • 0.647 lbs. (0.29 kg)
    • 0643-B
    • 0.660 lbs. (0.3 kg)
    • 0643-G
    • 0.647 lbs. (0.29 kg)

Customer Reviews

  • Excellent
  • Good
  • Average
  • Fair
  • Poor
Write a review
  • 4.75 average rating from 8 reviews
Sort by

Great StewMac service!

(Customer's Reviews)

I recently purchased 3 sets of M6s for a matching 6 & 12 string build. 2 of the tuners were very difficult to turn - something internal. Called StewMac and had new tuners arrive in 3 days. No questions asked. Thank you!


Great Upgrade

(Customer's Reviews)

Good tuners can make a lot of difference in how good a guitar plays. Great tuners are an investment in your instrument. Schaller makes great tuners. My 2nd set purchased from StewMac to upgrade ho-hum guitars into truly nice players.



(Customer's Reviews)

I used the black Schallers to replace the stock chrome tuners on an old Fender acoustic. They look slick as heck, hold tune, and turn nice and smooth. I had to widen out the old post holes and drill new holes for the screws but since it's a kickaround guitar I had no problem with that. My only issue was that 2 of the threaded collars had burrs on them and were difficult to screw into the tuner housing. I had to force them very carefully so as to not scratch the black finish on the hardware. Hence; the four stars.

Showing 3 of 8 Read more reviews >>

StewMac PDF Catalog, page 60 See Schaller M-6 3+3 Guitar Machines
on page 60 of our StewMac Catalog PDF

12MB File

View with Adobe Acrobat Reader 4.0 or higher.
Download Adobe Acrobat free from Adobe.