Features
9PCS Torx Key (Star key set): T10 T15 T20 T25 T27 T30 T40 T45 T50
Specifications
  Size        Long side Short side
  T10 88mm 16mm
  T15 94mm 20mm
  T20  100mm 22mm
  T25 104m 23mm
  T27 110mm 25mm
  T30 117mm 25mm
  T40 129mm 28mm
  T45 140mm 28mm
T50 150mm 34mm
Material 
  CR-V ChRome Vanadium steel
  Chrome is a very hard metal, and adds hardness to steel.
  Vanadium is a brittle metal, adding toughness. 
  The end result is a steel that holds an edge but doesn't go dull after repeated use. 
In Machead, tool made of CR-V can be more durable and resistance to corrosion.
Package Content:
1 x  9PCS Torx Key