EVANS Torque Key กุญแจกลอง

คลิป https://www.youtube.com/embed/c2VV43OW3pA

Torque-handle can be set to desired tension, helps attain tuning accuracy
Magnetic head helps prevent slipping and stays in place for quick adjustments
Durable, ergonomic construction
Designed in conjunction with Ned Steinberger
All Evans accessories are designed, engineered and manufactured to the most stringent quality controls in the industry