An increasingly common occurrence in workshops is bikes coming in with the self extraction caps missing from cranks, especially Sram DUB. Unfortunately due to COVID’s supply chain issues replacements aren’t always available which is where this nifty little tools comes into play. Constructed from Stainless Steel, all you need to do is spin it in by hand (no pin spanners needed!) then it can then be tightened using a 32 mm socket or spanner (although finger tight is generally fine) and the crank can be removed!
M25*1 fits FSA SLK Light BB386
M26*1 fits SRAM Force
M27*1 fits most FSA
M30*1 fits SRAM DUB and FSA BBright BB386 EVO