Description of ๐ง LENOX Tools Bi-Metal Speed Enhancement Technology
2X more durable with 50% longer life than previous LENOX hole saws. Increased wall thickness improves durability and minimizes tooth loss. Optimized tooth design penetrates metal with ease. Larger, sharper teeth for faster cutting. SPEED SLOT staircase design for easy plug ejection.
I have burnt teeth of this size in my Lenox hole saw kit and this is a replacement. They have modified the plug ejection slots on the side to make it even easier to take out. (In the future I bought a diamond stucco crown.)
I use them in my pipe punch. I've used the same grooving cutter for both 40 and 1 1/2 gauge pipe and it continues to work. No problems with broken teeth and it seems to stay sharp much longer than I expected.
I had a cheap hole saw from a big box. Firewood burned best after a few cuts. This frustrated and annoyed me as I was wasting my time and ignoring my best advice to get decent tools. So I ordered this for two day delivery, received it in one day and finished the job with absolute ease. I've since bought a few more Lenox hole saws of various sizes and they've all given great results. The speed slot also seems to make it easier to remove the connector from the blade. So far so good in terms ofโฆ