Park BBT-19.2 Standard 16 Notch 44mm External Bottom Bracket Tool YGroup_7421782851629 It uses hardened steel breaker

It uses hardened steel breaker pins and you get a spare included with the unit which is pin stored in the handle

Easy to charge with the included USB cable with a 3 hour charge time

2 hour recharge time with USB2

Amino Arginine increases oxygen and nutrients

If you own Shimano Hollowtech II cranks

Park BBT-19.2 Standard 16 Notch 44mm External Bottom Bracket Tool YGroup_7421782851629 It uses hardened steel breakerTop Quality Bottom Bracket Tool Suitable for use on 16 notch, 44mm outer diameter bottom brackets, the BBT 19. 2 is designed to be used with a 3 8" drive ratchet, enabling it to be used with a torque wrench such as the Park Tool TW 6. 2. Suitable for use on all 16 notch external bottom brackets including: Shimano Hollow Tech II Truvativ GXP Race Face X type SRAM FSA Chris King Hope Campagnolo Note that this will not fit Race Face 30mm spindle BB's.