• the special "gear-lock-profile" can be used for hex., double hex., T-STAR, metric and inch size screws
• suitable for both 6-pt. and 12-point screws
• knurled
• 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 24 - 27 - 30 - 32 mm

also suitable for:

• E-type: E10 - E12 - E14 - E16 - E18 - E20 - E22 - E24
• Inch sizes: 5/16" - 11/32" - 3/8" - 7/16" - 15/32" - 1/2" - 9/16" - 19/32" - 5/8" - 3/42" - 25/32" - 13/16" - 7/8" - 15/16" - 1-1/16" - 1-3/16" - 1-1/4"