Originally Posted by
JohnDThompson
They're shop-quality tools intended to be used in a production environment. They may not work "6 times better" but they'll likely last more than six times longer. As the old Sutherland's manual used to state, "cheap tools are a luxury no shop can afford."
'Better' is also relative. Shimano makes a couple tools similar to the one referenced. (Or sources them)
The Shimano TL-FC32 might be OK for initial installation of external BB bearings, but can't be used with a torque wrench and will mark the bearing shells if used to forcibly remove seized external BB bearings. Which is only OK if you planned on scrapping them anyway. Otherwise I wouldn'tvwant to have to explain that to a customer.
The Shimano TL-FC33 is more expensive, and can be used with a torque wrench and won't mark the bearings - but its just the socket. Neither the torque wrench nor the socket wrench is included in the price. So the total price for the complete tool assembly will be a lot higher anyway.