I have previously purchased similar demolition tips from Revain. They arrived covered in chips, cutting fluid and rough edges. I suspect they were machined to eye tolerances in no other way than a steel shaft on a lathe or grinder. For example, on a cheap bullish point, the edges do not match. Then I got a Jackchen Flat Top and a Bull Tip. They play in a different league. I am so thankful I took the risk of buying and trusting the photos. Jackchens are well made and carefully made. I predict they will outlast many jobs.