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Grover F-Style (309 Series) Mandolin Tuning Machines

Grover F-Style (309 Series) Mandolin Tuning Machines

Grover F-Style (309 Series) Mandolin Tuning Machines Worm under string post, nickel, 4L/4R

Worm under string post, nickel, 4L/4R

Item # 5675
In stock, ready to ship!

$66.13

+
Grover F-Style (309 Series) Mandolin Tuning Machines Worm under string post, gold, 4L/4R

Worm under string post, gold, 4L/4R

Item # 5675-G
In stock, ready to ship!

$88.79

+
Grover F-Style (309 Series) Mandolin Tuning Machines Worm over string post, nickel, 4L/4R

Worm over string post, nickel, 4L/4R

Item # 5674
In stock, ready to ship!

$66.13

+
Grover F-Style (309 Series) Mandolin Tuning Machines Worm over string post, gold, 4L/4R

Worm over string post, gold, 4L/4R

Item # 5674-G
In stock, ready to ship!

$88.79

+
 
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Grover F-Style (309 Series) Mandolin Tuning Machines

About This Item

Grover F-style mandolin tuners are available in two different gear configurations, with engraved die-cast baseplates and 18:1 gear ratio.

Standard 29/32" (23mm) string post spacing.
11/32"-diameter (8.73mm) pegholes required.

Each set includes:
• Pair of 4-left, 4-right tuning machines
• Removable pearloid plastic knobs
• Press-fit peghead bushings
• Mounting screws

Available in two different gear configurations:
#5675 with worm gear under string post (turn the the knob counterclockwise to tighten the string)
#5674 with worm gear over string post (turn the knob clockwise to tighten the string)
Important: These two styles may not be interchangeable on the same peghead. See Specs before ordering.

Installation Tips

Peghole spacing: Plate-mounted tuners can't work efficiently if the pegholes are improperly drilled. Our Mandolin Peghead Drill Jig ensures precise 29/32" spacing for accurate alignment for these tuning machines.

Bushings: We recommend the Standard Peghole Reamer to cut smooth, perfectly round holes.

Mounting screws: Pilot holes required. Installing delicate screws into hard wood requires great care and accuracy. We highly recommend the #1711 Depth-stop Drill Bit (No.50 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.



CALIFORNIA PROPOSITION 65 WARNING
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.


    • Item #
    • Weight
    • 5674
    • 0.3460 lbs. (0.16 kg)
    • 5674-G
    • 0.3460 lbs. (0.16 kg)
    • 5675
    • 0.3440 lbs. (0.16 kg)
    • 5675-G
    • 0.3440 lbs. (0.16 kg)

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5.0
  • 4.83 average rating from 48 reviews
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5.0

Great Tuners!

By

Verified Buyer


Perfect fit on my Loar mandolin. No more retuning every 10 minutes!

5.0

Great tuners that fit my Eastman MD315

By

Verified Buyer


I needed good tuners to replace the stock tuners on my Eastman MD 315. These also fit the Washburn F body mandolins. These tuners are amazing and budget friendly. You can't go wrong with these. You will have to re drill screw holes. The screws on either end of the tuner plate do not line up with the stock holes. Not a deal breaker and your audience will not see the back of your head stock. You need tuning stability and these tuners deliver. Make sure to use plenty of graphite in the nut slots or order a custom zero glide nut with a 12 inch radius for the Eastman MD 315 mandolin. This addition will add to tuning stability in combination with these Grover tuners. Just a tip for those who demand amazing results. Get a set of these tuners for your Eastman MD315 and enjoy.

5.0

Grover 309's

By

Verified Buyer


Stew-Mac is always dependable, top notch materials and fast service.... my best supplier

5.0

Perfect upgrade tuners

By

Verified Buyer


I have an Eastman MD315-F mandolin. The stock tuners were a struggle to turn and did not stay in tune. The Grover 309 series tuners fit peg spacing perfectly; I only had to drill two holes per side to attach them to the peghead. Now, getting in tune is smooth as silk, by comparison to original tuning machines. MOST importantly — tuning can be achieved without a “skip” above or below pitch. These machines stay in tune better, too.

5.0

Easy replacement

By

Verified Buyer


Replaced tuning machines on Loar mandolin. New machines fit well and easily installed.

5.0

Best Tuners Ever

By

Verified Buyer


Received my tuners very quickly and they are great. Should of replaced my old ones a long time ago. It has made my mandolin seem like a bran new one. The smooth turning is astounding. Couldn't recommend these highly enough. Stew Mac are a fantastic company to deal.

5.0

Grover F-309

By

Verified Buyer


Excellent service and product!

5.0

Great tuners!

By

Verified Buyer


The old tuners on my mandolin were starting to slip. These tuners are very smooth and were easy to install. I have Grover tuners on my Dobro as well and they always look good and are very smooth.

5.0

Grover mandolin tuners A+

By

Verified Buyer


These tuners are incredibly smooth. They solved the tuning problem I was having with the stock tuners. Definitely worth the money. Thanks!

5.0

great tuners - fit well on eastman md-415 mandolin

By

Verified Buyer


great tuners - 3 inner screws line up perfectly on the Eastman md-415 mandolin outer 2 do not line up - Eastman makes great mandolins but their tuners are not so good - too tight - these work better to tune your instrument - highly recommended

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