5 Pc Truss Rod Wrench Set, Fits Many PRS Ibanez Gibson 6.35mm 7mm 8mm 1/4" 5/16"
Please view pictures and check spec's below before you buy.

Specifications:

6.35mm (1/4") Long Barrel:
  • Total Length: 3 1/16"
  • Total Barrel Length: 1 3/32"
  • Barrel Length from handle: Just over 3/4"
  • Barrel outside diameter: Just over 3/8"
  • Inside socket depth: Approximately 1/3"

7mm Long Barrel:
  • Total Length: 3 1/16"
  • Total Barrel Length: 1 3/32"
  • Barrel Length from handle: Just over 3/4"
  • Barrel outside diameter: 7/16"
  • Inside socket depth: Approximately 1/3"

8mm (5/16") Long Barrel
  • Total Length: 3 1/16"
  • Total Barrel Length: 1 3/32"
  • Barrel Length from handle: Just over 3/4"
  • Barrel outside diameter: 1/2"
  • Inside socket depth: Approximately 1/3"

7mm Short Barrel:
  • Total Length: 3 1/4"
  • Total Barrel Length: 3/4"
  • Barrel Length from handle:1/2"
  • Barrel outside diameter: 3/8""
  • Inside socket depth: 7/16"

8mm (5/16") Short Barrel
  • Total Length: 3 3/8"
  • Total Barrel Length: 3/4"
  • Barrel Length from handle: 1/2"
  • Barrel outside diameter: 7/16"
  • Inside socket depth: 7/16"

Possible compatibility:

6.35mm (1/4 inch) is compatible with most Taylor Taylor's Folk Guitar Series (not suitable for the brand's classical guitar).

7mm is compatible for some Korean PRS, some Jackson, some Taylor and Ibanez guitars.

8mm (5/16 inch)  is compatible for some American Gibson electric guitar, ESP electric guitar, and some PRS guitars.