Good quality, good value
594286
A long while back, I worked in a mil-spec environment and mission critical avionic boxes were all finished out with Heli-coils at every fastener. 40 years later, I had to do a repair at a single point on an automotive engine and was reminded of this technology.

This was a back burner project so I could wait out the several weeks delivery from Hangzhou near Shanghai, in return for a tidy kit at lower price.

The kit is exactly as pictured and I'm impressed with the quality. Special mention...
- Plastic box that is significantly roomy and sturdy. Could be re-purposed on the bench top or in the tool bin.
- Instructions in perfect english, other than perhaps two missing commas, with pictures in color.
- HSS for drill and tap (rather than cheap carbon steal).
- The hex key is to adjust the install depth collar on the insert tool.
- Coils are likely stainless, have a length of 6.5mm, about 7 turns.
- For this M6-1.0 kit, the drill size is a correct 6.3 while the tap is engraved as "STI M6x1.0" and is probably a plug
profile, definitely not a bottom.

This latter item amuses me for the reason that the tap is not actually an M6 tap but rather a Screw Thread Insert tap specially sized to be used for M6 coil prep. This is essential information for the reason that neither the box nor the instructions are labeled with the application size (M6-1.0). So, one of the few ways to discover the kits intent is to read this fine print on the tap while knowing the significance of "STI". The other two ways are to measure a coil ID or OD, and also to read the drill size (6.3mm), then checking either against a Heli-coil table. Step one, label your kit.

Since we are talking a repair kit, and repairs tend to require a quick turn, I think it would be astute for the supplier to stock locally.
894768
Good quality, good price, easy to set up and use. What more could you ask for. I would recommend them.
596069
Good quality considering the price.  Would buy again.  Recommended.
2881213
Good quality, good price. It is good to have an extra as they are easy to misplace.
3658066
As expected.  Good value. Seems to be good quality
4155782
Very pleased with purchase. Good quality, good price.
1399606
Good price, good quality, good fit and good color.
2934475
Good quality, good value. Can hold A4 paper too 'cos it is open on top.
514025
Very warm, good quality, good value. A bit big for a 10 though.
1376993
Good quality, good price, nice tool box, good size coverage.  Everything good quality like most Irwin tools.  In general you can't go wrong with Irwin tools for serious users.
1696409
What I was looking for. Satisfied, good value!
418702
Bought these for my son. Nice quality, good price. I would recommend these shirts.
2898945
good value, great quality. I use these to secure the bike wheels and hold stuff together on the bike rack to avoid movements and needless friction while in transport.
2866727
Good quality, good price, fast shipping.  Like them so much I ordered a second set in another color. Would definitely order from this company again.
4431205
Got what I wanted, good value, good quality, good product, as advertised.
2364265
Good quality and price.  I purchased these to put small air plants in after decorating with sand and shells.  They are appealing and have done well in my shop.  I had purchased a few at another location for my cabin and put tea lights in.  These are a much better value and good quality.
950722
Works as described, good quality and value.