12 pieces star bit socket set
Model no.: H38609
* Chrome vanadium alloy steel construction for strength and durability
* Polished nickle chrome plated finished resists corrosion.
* 1/4" drive sizes: T10, T15, T20, T25, T27 and T30
* 3/8" drive sizes: T40, T45, T47, T50 and T55
* 1/2" drive sizes: T60
https://www.homarhardware.com/screw-driver-and-bits/bits/star-bit-socket-set.html