Park Tool Left Hand Threaded T47 Guide (#648L) colour-bright-red Strobe mode (front): 15 hours

Strobe mode (front): 15 hours at 120 lumens

Matchmaker Compatible: No

Deep cleans all drive chain areas in seconds

8 notches with an outside diameter of nominally 43

and channel water away from the center

Park Tool Left Hand Threaded T47 Guide (#648L) colour-bright-red Strobe mode (front): 15 hoursAbout Park Tool Left Hand Threaded T47 Guide (#648L) The 648L is an M47 x 1. 0 left hand threaded standard guide for use when facing bottom bracket shells with the BFS 1 Bottom Bracket Facing Set and 690 XL Oversized Facer. This guide is used on the drive side (right side) of the bike. Features M47 x 1. 0 left hand threading Sized for T47 bottom bracket shells About Park Tool Park Tool are the world's largest bicycle tool manufacturer. Located in St.