The Park Tool 648L Left Hand Threaded T47 Guide, click to enlarge

Item # 648L

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Left Hand Threaded T47 Guide

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.

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648L Features

  • M47 x 1.0 left-hand threading
  • Sized for T47 bottom bracket shells

Compatible Products


Bottom Bracket Facing Set


Bottom Bracket Tapping & Facing Set

648L & 648R T47 Bottom Bracket Guides