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

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Left Hand Threaded T47 Guide

The 648L is a T47 (47mm 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. This side of the bike drive uses a counter-clockwise or left hand threading.

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648L Features

NOTE: For sharpening services of cutting tools see Park Tool Sharpening Services. Always use cutting fluid such as Park Tool CF-2 when machining.

Compatible Products


Bottom Bracket Facing Set


Bottom Bracket Tapping & Facing Set

648L & 648R T47 Bottom Bracket Guides