TCT Hole Saw Set, 2-Pack of 5/8" (16mm) Heavy Duty Tungsten Carbide Tipped Hole Cutters for Stainless Steel Mild Steel Copper Iron Brass Plastic and More, with Titanium-Plated Pilot Drill Bits

Worked good until the spring got under the carbide cutters and chipped one of the teeth. Ordered some more and removed the springs.

I was looking for a hole saw to penetrate a steel drum. This tool performed as advertised cut through the drum like butter. Highly recommend.

Had no problems going thru 3/8” steel 👍🏻

so this is to follow up with pilot bit issues... company quick to make replacement with bad pilot bit. so place product as a buy 4 star. good luck

These are incredible for boring a clean hole. I bored 3/8" mild steel with these, Wow!, best hole saw I've eve had.

RE: 35mm unit - the picture is incorrect. The 35mm saw is not smooth sided, it has a limit band at the base to prevent over penetration. I did not want the band and now have to lathe it off. Otherwise, the construction seems too notch.

I recently purchased this hole saw but to my dismay, I ordered the wrong size. After I returned the item, I contacted the seller since I had not gotten my credit yet and they responded almost immediately. Although they had not yet received the item, they refunded my purchase price. Although I did not use the hole saws, they appeared to be well made. I got 2 hole saws with arbors for LESS the the cost of one Bosch saw without an arbor. I highly recommend you try this product for both its value and the excellent customer service.

Excelente producto lo recomiendo fue muy fácil mi proyecto que ise esta garantizado por mi mismo 👌