Hey General question, not a specific problem I have right now. Is a normal tap and die set OK to use to clean up threads? Things like engine casing, holes in wheels for bolting the brake discs on, etc. Something like this: 40 PCS METRIC TAP WRENCH AND DIE SET CUTS M3-M12 BOLTS & HARD CASE S1150 | eBay Cheers
Any good quality die/tap set will work just fine but always best to think of it as a last resort. If you use it to try and clean up threads cut in aluminium you'll often do more harm than good and I probably don't need to tell you that you need to look out for helicoil inserts.
I use a similar but smaller set made by Draper to do just that to good effect. Whatever you buy make sure you have the right thread pitch. The set you linked as 2 pitches for the smaller sizes but only 1 for M10 and above. The Italians use some really odd thread sizes. Andy
Agreed. M8 & M10 fine thread in a couple of places. Only run a tap through if the thread is damaged or heavily fouled with loctite. First port of call is brake cleaner and an air-line.
Don't use cheap tooling as the thread can be opened out and you will find too much material is removed and you have a clean but "wobbly" thread because too much material has been cut out. For smaller threads like M6 and below sometimes it's better to use a first and second cut tap before you use the final tap to clean out the hole. It can depend on whether it is a hole in a plate\bolt etc. or a blind hole. Blow out blind holes with an air gun or WD40 etc to make sure no swarf is left behind or you could get binding or thread damage.
Steer clear of that TAT!!! These look like they are made in China with nasty cheap steel!! They are all Bottom taps only which is not good to use on cleaning threads. There are normally three taps you use to tap a hole and these are used for the final tapping, not something that should be used for cleaning out threads. If you really want to maintain a properly tapped hole in your CNC built casings then this is not what you want unless you really need to muck up your lovely built motorcycle. Because these are final taps they have no flute/relief vanes they cannot clear Loctite or any foreign matter.
Well any decent brand really as this is the kind of tool you will only buy once and it will out live you . Also buy a quality tool that is ISO standards. Engineering Supplies - Discount Carbide Inserts, Carbide Cutters, Taps, Drills & Abraisives
You really only need to buy what you need unless you are a competent engineer and can recognise several hundred thread types, because it is complicated. Most of the threads you will come across will be metric on you bike, and unless you have the skill and expertise to restore a brake caliper thread then you should not dable there given the danger it can have.
Or this one? Clarke CHT527 32-Pce HSS Tap & Die Set - Machine Mart - Machine Mart My main thoughts for starting this thread was that i'm about to send my wheels for powder coating. Once back I want to make sure the threads holding the brake rotors to the wheels are free from thread lock, crap, etc before refitting.
Ok so I see where you are coming from. Yes you just want to have the threads clean. But really any good powder coaters should protect your threads from contamination in the first place. You pay for what you get. Trust me I have been there and don't use backstreet cheap coaters for a reason. Spend your money and take your choice, that is the only good advice I will give you coming from and engineers background
sure, but regardless of the powder coater there will be thread lock left behind from where the bolts were installed before.
No, it is the same root diameter of a bolt' That is what a tap does. It does not cut any more or less that the bolt that fits the thread
Dormer would be my weapon of choice, never let me down. If you are only cleaning particulate from threads I wouldn't get caught up in spending heaps.. If however I was cutting new threads I would go for top end stuff. Avoid ratchet tap wrenches, they can be awkward to use but can help in restricted spaces.