SealeyAK3021 21pc Tap Set - Metric

Really pleased with this set.So far I’ve only used the M6 tap, but that was a total success.I needed to tap an M6 thread into some structural steel which was approximately 10mm thick.Whilst drilling the pilot hole I was a little concerned how well these taps would cope with it as it was quite hard to drill.Due to where the tap needed to be done I wasn’t able to get my tap wrench in the space. After drilling a 5mm pilot hole. I inserted the first tap into a cordless drill, on low speed and low clutch setting and plenty of cutting fluid. I was amazed how well and easy the tap cut. I repeated through the next two taps, both as easy as the first. Got the bolt and was a perfect fit. No visible signs of wear to the tap after using. Very happy with purchase. As an occasion user I can see these lasting me a lifetime, for someone who uses them a lot I would have thought they’d still be happy with the quality.

You get three of all sizes pluss for me as you will no doubt break one

Hadn’t used it yet but I hope they are tough to penetrate the harden steel of most bolts. There shouldn’t be a size issue but would’ve been greater in metric.

Bought this entire set to re-thread a metal socket box that had lost its thread due to a bungled job by a clumsy electrician. This entire set cost less than some individual thread taps, so I thought I may as well get the set, since it's also from a well-known brand.To my surprise, it came in a nice metal box and so far is very accurate.

Good variety of tools in a steel box.They saved me in several occasions.Recommended