Starrett 18C Automatic Center Punch Heavy-Duty With Adjustable Stroke, 5-1/4 Length, 11/16 Diameter

Ok

Is de beste die ik al gehad hebt tegen mijn andere

I am super happy with this product. Solid and sturdy. I have been using it for a few weeks and did not have any issues yet. The heaviest use was for a project where I had to do punches for 170 holes. It worked great.My only remark is that the spring mechanism seems quite hard and you need to put quite some pressure to get the automatic punch. But I understand that it is supposed to be like this. I used gloves, took some breaks and finished my project.

Excellent tool

I bought two of these from Amazon warehouse at a very good price.I found that both punches failed to trigger despite pushing with considerable force, obviously the reason they were returned! Amazon warehouse clearly doesn’t “fix” or test them!They arrived in original but re sealed Starrett packaging. So I was happy they are genuine Starrett products. Being Starrett they are obviously very well machined to high tolerances from high quality materials, so the problem is with the main spring.The design allows for adjustment of the “trigger” pressure by screwing the cap in or out. At maximum (softest) adjustment only one would “fire”.I disassembled them checked all the components were present and measured the spring lengths. Both springs were very stiff and too long for the contained length when unconfined. New springs which had never been compressed. Using water pump pliers (parallel jaws) I gently compressed the springs by around the designed length of travel (cap length) and released, 3 times. This conditions the spring to the required travel.I reassembled both punches and voila! Both work perfectly. A simple fix.Time to unpack, assess and fix less than 10min.Clearly given the number of customer complaints around their automatic punches on Amazon Starrett, despite being one of the premier tool brands, are failing to factory condition their spring punches. 😠So, it appears that it is pot luck whether a new punch works strait out the box so you might as well try an Amazon warehouse one, if needed it’s a very simple fix and save ££.