What is the opening size exactly? My music maker has square pins that measure 0.165" and I know that some of the wrenches out there will not work.

the opening size is ABOUT 5/16" to 3/8" square....i just took a chance and bought the tuner for my unknown brand autoharp...and it fit!

WILL THIS TUNE A 1959 Oscar Schmidt auto harp?

Do the tuning pegs have a squarish roundish shape? Like tuning pegs on a piano but much smaller? I'm pretty sure all autoharps have the same kind of pegs and this one should work. I say go for it. Get a 25$ purchase and shippings free for that item, kinda cool.

Does this tuner work on the first act mg901 lap harp?

I don't know. It works on most brands of auto harps because the pegs for the strings are alike on most of them. So I would assume it works.

Would this work for a 19 string pixie harp? The pegs are about 4mm or about 5/32". A little smaller than someone said 3/16" was standard.

I don't know what a pixie harp is. But when trying to tune my autoharp, the metal end that fits over the string peg split. I found it to be a piece of junk!

Grover 8020 Autoharp Tuning Hammer

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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B/.25

Duties & taxes included

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Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎸 Tune like a pro, feel the groove!

COMPACT LIGHTWEIGHT - Perfectly sized (1.5 x 3 x 0.7 in) and featherlight (1.6 oz) for on-the-go pros
ERGONOMIC WOOD HANDLE - Comfort grip designed for extended tuning sessions without fatigue
INDIVIDUALLY POLY BAGGED - Keeps your tool pristine and ready to impress
PRECISION CHROME PLATED SHAFT - Engineered for durability and smooth tuning every time
TRUSTED AMERICAN CRAFTSMANSHIP - Made in the USA, a mark of quality and reliability you can count on

The Grover 8020 Autoharp Tuning Hammer features a chrome-plated hardened steel shaft paired with a comfortable wood handle, delivering precision and durability. Compact and lightweight, it’s individually poly-bagged for protection and proudly made in the USA, making it an essential tool for musicians seeking reliable, professional-grade tuning performance.

Specifications

ASIN	B0002F7IEE
Best Sellers Rank	#27,021 in Musical Instruments ( See Top 100 in Musical Instruments ) #324 in Music Tuning Accessories
Body Material	Wood and Steel
Customer Reviews	4.3 4.3 out of 5 stars (364)
Date First Available	May 5, 2007
Is Discontinued By Manufacturer	No
Item Weight	1.6 ounces
Item model number	8020
Material Type	Steel, Wood
Product Dimensions	1.5 x 3 x 0.7 inches

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B/.25

Duties & taxes included

In stock

Sold byAmazon PanamaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Panama.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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