GrandTune single ukulele
GrandTune single ukulele
From €21.50*
available, delivery time appr. 1-3 days Germany, 3-5 days Europe, 5-7 days other countries
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Log in nowGrandTune single: tuning machine head for ukulele
With the Schaller GrandTune we have created the ultimate combination of stylish vintage design, accurate tuning and velvety smooth performance. A perfected, classic tuning machine for guitars, as open-gear tuner.
Its 1:18 gear ratio offers unsurpassed precision and durability. The avoidance of synthetic coatings makes it a perfectly resonant unit on any instrument. With its wear-free interaction it will shine and sound as long as your finest guitars. Experience for yourself how sound quality, tuning stability and performance find unity in these machine heads.
Special features
- Ultra-precise fits and contact surfaces, without polymer coating, produce perfect adhesive lubricity, free from wear or aging.
- The mechanism provides permanently locked, sealed and sealed screw connections, for maintenance and wear free performance.
- For the development, the common dimensions of series instruments were taken into account to guarantee trouble-free installation or replacement.
Technical specifications
- Gear ratio: 1:18, ensures exact and velvety tuning
- Weight single tuner: 18 g (Koa), 19 g (Perloid), 20 g (Galalith or Ebony), 21 g (Snakewood), 25 g (Butterbean) including press-in bushing
- Button dimensions in mm (WxHxD): 20.4 x 13.8 x 10.4 mm (Butterbean), 17.6 x 13.7 x 6.1 mm all others
Scope of delivery:
- 2 x mounting screws each single tuner: M2.2 x 11
- 1 x press-in bushing each single tuner, hexagonal design, for mounting on solid headstocks, with outer diameter 8.8 mm, inner diameter 6.1 mm, suitable for 6.0 mm posts.
Always use the original GrandTune bushings. The inner diameter is worked exactly for the 6 mm posts and gives the worm gear an exact alignment. Bushings with a larger inner diameter inevitably destroy the worm gear over time.
Optional accessories: press-in bushings with 8.8 or 10 mm
Expanding the drillhole diameter for press-in bushings:
If the tuner hole is too small, it is recommended to enlarge the diameter to the appropriate size. Always use a reamer to avoid splinters on the surface of the wood, or have the tuner installed by an instrument maker. Reamers for different diameters are available from Stewart MacDonald for example: peghead bushing reamers
See also our other GrandTune designs for western and steel string guitars, classical guitars, electric guitars, archtops (jazz/thinline), resonator guitars, ukuleles or mandolins.
- Classic Hauser with guide bushings
- Classic Hauser without guide bushings
- Classic Lyra with guide bushings
- Mandolin A-style non-reverse and F-Style reverse & non reverse
Technical drawings
GrandTune single 1051
Product Guide GT 1051
PDF Download
- Gear ratio: 1:18, ensures exact and velvety tuning
- Weight single tuner: 18 g (Koa), 19 g (Perloid), 20 g (Galalith or Ebony), 21 g (Snakewood), 25 g (Butterbean) including press-in bushing
- Button dimensions in mm (WxHxD): 20.4 x 13.8 x 10.4 mm (Butterbean), 17.6 x 13.7 x 6.1 mm all others
Scope of delivery:
- 2 x mounting screws each single tuner: M2.2 x 11
- 1 x press-in bushing each single tuner, hexagonal design, for mounting on solid headstocks, with outer diameter 8.8 mm, inner diameter 6.1 mm, suitable for 6.0 mm posts.
- No bushings are required for slotted headstock GT-models (these are not included in the scope of delivery)!
Always use the original GrandTune bushings. The inner diameter is worked exactly for the 6 mm posts and gives the worm gear an exact alignment. Bushings with a larger inner diameter inevitably destroy the worm gear over time.
Expanding the drillhole diameter for press-in bushings:
If the tuner hole is too small, it is recommended to enlarge the diameter to the appropriate size. Always use a reamer to avoid splinters on the surface of the wood, or have the tuner installed by an instrument maker. Reamers for different diameters are available from Stewart MacDonald for example: peghead bushing reamers
Optional accessories: press-in bushings with 8.8 or 10 mm
See also our other GrandTune designs for western and steel string guitars, classical guitars, electric guitars, archtops (jazz/thinline), resonator guitars, ukuleles or mandolins.