GOTOH SD91-05M 6L HAPM guitar machine heads, vintage style nickel, Magnum lock

Specs

GOTOH original product

• Model: SD91-05-6L machine heads  for ST and TL guitars vintage style
  

• Left side for standard right hand playing guitar, H.A.P.M & Magnum Lock

• Ratio: 1:15

• Bushing diameter: 8.8 mm

• High quality made in Japan

• Nickel finish

• Peghead bushings and screws included

         (2 set of bushing included: Ø 8.8x8 mm & Ø 9.2x6 mm)

• Totally new in its original box

MG [ MAGNUM LOCK® ]

GOTOH Magnum Lock is a self locking system by string tension and is a great asset when keeping vibrato-equipped guitars in tune without any string breaking and slipping off. Tuning stability of new Magnum Lock is taken to a next higher level with the introduction of new smaller string holes on 1st, 2nd and 3rd string posts.

What’s? – About Gotoh HAP.

H.A.P.® ＝ Height Adjustable Post
H.A.P.-A® ＝ Height Adjustable Post for Acoustic guitar
HAP models are prepared for all of SG/SD guitar peg series. HAP is designed for a lower-positioned post, compared with a standard post. HAPA is designed for a higher-positioned post, compared with a standard post.
Please refer to the measurements of each model indicated in a catalog to find each moving part.
*HAP/HAPA can be customized as orders are received, same as buttons and colors.

Gotoh SG-Series and SD-Series feature Rock-Solid™ string post (except for a few models) and have 5 kinds of post variation, Standard, Magnum Lock(MG)®, H.A.P®, H.A.P.A® and H.A.P.M which you can choose.
It gives unrivalled tuning stability for Vibrato equipped guitars. Gotohs advanced technology and developing spirit have greatly won the confidence of many giitar builders in the world.

H.A.P.® [Height Adjustable Post] PAT.

Creating the perfect down pressure over a guitars nut is a complex balance between Headstock angle and Tuning machine head post height selection. Height adjustable posts take away tha guesswork by allowing you to dial in the exact angle you need for, friction, string pressure / tension and open string sound and sustain. Ideal for flat style peg heads when string trees need to be eliminated.