Park Tool 693 Right Hand Threaded Italian Tap for BTS-1

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36 mm x 24 TPI left-hand threading Sized for Italian bottom bracket shells *Requires to be used with BTS-1 Bottom Bracket Tapping Set (purchase separately) The 693 is a 36 mm x 24 TPI right-hand threaded tap designed for use with the BTS-1 Bottom Bracket Tapping Set to tap Italian threaded bottom bracket shells. This tap is used on both sides of the bike, as both sides of the Italian standard are right-hand threaded. NOTE: Always use cutting fluid such as Park Tool CF-2 when machining. Show more