The Rotomatics® (102 Series) machine heads are a triumph in engineering and styling. The housing provides a maximum bearing for worm, gear, and string post. Gear ratio is 14:1.

The 102 Series machine heads are a triumph in engineering and styling. The housing provides a maximum bearing for worm, gear, and string post. Gear ratio is 14:1. Worm and gear are precision-cut for perfect meshing, which eliminates backlash and slippage. Countersunk tension screw permits player to regulate turning tension to any degree. Enclosed gear box with special lubricant for a lifetime of trouble-free service.

• Sealed-in, lubricated gears

• 14:1 gear ratio

• 25/64” post hole

• Post length to hole: 23mm

• Overall post length: 28.2mm

• Weight per pc/per set: 1.6oz/9.6oz

• Max. string gauge: .074”

• Hardware included (bushings, washers, screws)

Drop-in replacement for:

• 102-18 Series

• 102V Series

• 103 Series

• 106 Series

• 109 Series

• 109-18 Series

• 135 Series (Top mounting hole will be visible)

• 136 Series (Top mounting hole will be visible)

• 502 Series

• 509 Series

Model:

102NK Nickel with Keystone Buttons for standard guitars, 3 Treble and 3 Bass, Set of 6

For more information, visit our warranties page.

Shipping: 

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If you are unsure about the shipping cost, please do not hesitate to contact us.

Click and Collect Orders: 

Once your order has been processed, you will receive an email informing you that your order is ready for collection.

Note: Click and Collect orders are usually processed the same or next business day of purchase. If you have not received an email and it is not in a junk/spam folder, feel free to contact us for an update.

Preorders: 

When a product is displaying 'Preorder Now' instead of 'Add to cart', this means:

• the product is currently on order and,
• the product on order is available

You are able to purchase the product before it arrives, making sure you don't miss out on any exciting new releases!

If you would like to check the ETA or would like to put down a deposit to secure the product, please contact us or use the 'Request To Lay-by This Product Form' located above.

Pre-order Terms & Conditions can be found on the Lay-by, Special Orders & Preorders page.