Hipshot guitar tuner upgrade kit, 3+3 Grip-Lock, closed nickel

Are you spending half your time tuning and the other half playing out of tune? It could be your hardware. The Hipshot Tuner Upgrade Kit for 3+3 headstocks is a risk-free way to increase your guitars stability and get back to playing (in tune)! Whether you would like the security of Grip-Lock tuning machines or the lightness of classic style, the UMP (Universal Mount Plate) makes installation a snap. No special tools are required and you can revert your guitar back to original with no evidence that you ever upgraded.

Standard tuners retrofit guitars with 13/32" [10mm] headstock holes
All tuning machines are .827" [21mm] post length.
Included UMP (Universal Mount Plate) for 3+3 headstocks fits guitars with 3 tuners on a side. No drilling or special tools required
Open gear tuners come with HS buttons by default. Enclosed tuners come with Hex buttons by default. Lots of button options are available and are easy to change out
Open gear tuners are 18:1. Enclosed tuning machines are 15:1
Grip-Lock option uses a pin and thumb wheel system to clamp onto your string, no wraps needed
Classic option uses traditional, non-locking string post for weight savings on guitars with neck dive
String post hole fits strings up to .060"
Covered by USA and and foreign patents
Made in Korea