BBS3916: 16 notch BB socket for 39mm diameter notch pattern

The top opening

Rise: Flat

Kit includes 2 x Samurai Wipers and 2 x Thick foams that usually replace the old oil seals

Park Individual P Handled Torx Wrench - T20 PLP|Largest Cog BBS3916: 16 notch BB socketGreat quality Torx wrenches from Park Tool! Who's this for: Individually available, for when you need a high quality and comfy Torx bit tool, but don't need the full shebang kit of all the sizes. Material: High torque, industrial tool steel, for maximum longevity. Handle: Ergonomically designed nylon grip. Pros: Some of the best quality Torx tools you'll find. Cons: Not Park Tool blue.