Attaches to Power Screwdriver or Power Drill
Rubber Lined Safe, Scratch Free Design
Fits & Grips Virtually All Tuning Pegs
Narrow Profile Head Keeps from Hitting Adjacent Tuning Pegs, Especially Important on 12 String and Electric Guitars Where Pegs are Often Very Close
Strong Carbon Steel Shaft
 
https://www.musicnomadcare.com/Products/Guitar-Tools/GRIP-Bit-Peg-Winder/