Lots of good advice on here, with all sets there are a certain amount of “magical sizes” that in my forty one years in engineering I have never encountered such as M7, M9, M11. Some such as M2 are also so far “out there” that you will be very lucky if you ever see such a thread unless you are a sewing machine technician or optician perhaps, so you are paying for ballast in many of those cases.
Purchasing the individual sizes you need may be the best course, not only do you avoid a box of unused sizes, you can cherry pick the better manufacturers. For just cleaning up threads most should be okay, if you are actually cutting new bolts or nuts a stepping of the thread cutting is important to avoid overloading the tool, for this reason the taps usually come in sets of three, taper, 2nd and plug whilst good quality dies have a split in them to allow the dies to cut over-size on the first run before closing up to correct size for finishing.
The main difference in the two kits you listed is one is purely metric whilst the other is a combination, the metric set has some of the Mazda threads I have encountered whereas the combination set does not.
Tap sizes: 4x0.7, 5x0.8, 7x1/0.75, 8x1.25/1/0.75, 9x0.75/1/1.25, 10x0.75/ 1/1.25/1.5, 11x0.75/1/1.25/1.5, 12x 0.75/1/1.25/1.5/1.75, 14 x1, 16x1/1.5/2, 18x1.5, 14 x 2/1.5/1.25
Die Sizes: M2x0.4. M3x0.5, M4x0.7, M6x0.75,M6x1, M7x0.75, M7x1, M8x0.75,M8x1, M8x1.25, M9x0.75, M9x1, M9x1.25, M10x0.75,M10x1, M10x1.5, M10x1.75, M11x0.75, M11x1, M11X1.25, M11x1.5, M12X0.75, M12x1, M12x1.25, M12x1.5, M12x1.75, M14x1, M14x1.25, M14x1.5, M14x2, M16x1, M16x1.5, M16x2, M18x1.5
SAE DIE SIZES:1/4-20; 1/4-24; 1/4-28; 5/16-18; 5/16-24; 3/8-16; 3/8-24; 7/16-14; 7/16-20; 1/2-16; 1/2-20; 9/16-8; 5/8-11; 9/16-12; 3/4-10; 3/4-16; 5/8-18
METRIC DIE SIZES: 6X1.0; 8X1.25; 10X1.5; 10X1.0; 11X1.5; 1/8-27NPT; 1/4-18NPT; 12X1.75; 12X1.25; 14X1.25; 18X1.5
SAE TAP SIZES: 3/4-10; 3/4-10; 3/4-16; 5/8-18; 1/4X18NPT; 1/8-27NPT; 5/16-24; 5/16-18; 1/4-32; 1/4-24; 1/4-28; 1/4-20; 7/16-20; 1/2-13; 1/2-20; 9/16-12; 9/16-18; 5/8-11; 3/8-16; 3/8-24; 7/16-14
METRIC TAP SIZES; 18X1.5; 14X1.25; 6X1.0; 12-24; 10-32; 6-32; 4-40; 12X1.25; 12X1.75; 8X1.25; 10X1.5; 10X1; 11X1.6; 8-32; 10-24
If a set is still your preferred route have a look at something like this one, still a lot of redundant sizes but they do have the 10mm x 1.25mm for Mazda exhaust nuts and bolts
They might be made of toffee but could be enough for emergency use.

https://www.ebay.co.uk/itm/Tungsten-WRENCH-TAP-and-Die-Set-Cutter-Kit-110PCS-Metric-Steel-Screw-Bolt-Case/113337159069?epid=15020622291&hash=item1a636bcd9d:g:ow4AAOSwqaNbKgfZ:rk:6:pf:0