Reddit reviews REXBETI 12-Piece Metric Flex-Head Ratcheting Wrench Set, 8-19MM, Chrome Vanadium Steel Combination Wrench Set With Durable Blow Mold Case
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WHY CHOOSE REXBETI - Forged from high-quality chrome vanadium steel and finished in high-polish chrome,strength, durability, anti-corrosion protection, REXBETI 12-Piece flex-head ratchet wrench set makes emergency repairs a breeze180°FLEX-HEAD - The 180 degree flex head helps you to reach the tightest places where most ratchet wrenches would not reach. The 72-tooth ratchet gears need only a 5-degree working swing arc,which is definitely a premium mechanics hand tool to meet the tough requirements of professional automotive technicians and industrial usersMETRIC WRENCHES - 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm and 19mmDELUXE TOOLBOX - Housed in a handy blow-molded case for easy tool storage and portability. Its sturdy interior and organizer keeps tools in placeWIDE USE - REXBETI great wrench tools is a must have in your tool room, suitable for car repair and home use
Well, you wanted a project, and you wanted to learn...
To be blunt, Don't dive into this any further until you have learned how to get stripped fasteners out. It is a skill that is 100% necessary to learn, and ignoring it now will just cause heartache down the line. Right now, those two fasteners are worth exactly what you paid for the bike, because until you get them out, the bike is worthless. If you spend money fixing another problem, these will still be there, and they will still be broken, and if you can't fix them later, then all the time and money you spent elsewhere on the bike is for not.
There are millions of discussions on the internet discussing the removal of stuck fasteners. Some people are full of shit, others know what they are talking about. Given that this seems to be an issue of ferrous fastener in aluminum block, an easy-out is NOT the way to do it... I give you a 99.95% chance of breaking it off in the fastener.
Before you do anything else, buy the following tools:
HAND impact driver. (I've used many different ones, this is my preferred one)
Flex-head ratcheting box wrench set. When I was an industrial mechanic, I used these almost to the exclusion of ratchets. They fit in tighter places than ratchets, and because of physics, don't round fasteners as much.
A set of GOOD drill bits and cutting oil.
A Torque Wrench.
A service Manual for the machine you're working on.
DO NOT USE ADJUSTABLE WRENCHES at this stage in your adventure. They are a convenience trap, and are much more likely to round off a bolt head than a box wrench. Box wrenches and sockets are the least likely to round heads, because they apply force all around the fastener's head.
Aside from very specific circumstances, you should not be using power tools for anything mechanical. Any time they save on one task will cost you time unfucking your mistakes somewhere else until you learn the proper way to do things. (It's super easy to fuck a screw head, or cross thread a bolt if you try to zip it with a rattle gun.)
As far as the fasteners, if there is clearance, you can cut a slot in the head, and use a flat-blade screwdriver bit on your hand-impact driver to back the fasteners out. Alternatively, if there is at least 1/4in of thickness between the head of the fastener and the engine block, you can drill the head off, and then use vice-grips on the shaft of the fastener.