Description of Disston RemGrit Carbide Arbored E0104584
The product is 2-1/2" 1PC Hole Saw. Easy to use. The product is manufactured in United States. Cuts extremely hard abrasive materials. Cutting edge of tungsten carbide particles bonded to alloy steel back. High heat and abrasion resistance, no teeth to dull or chip, resists snagging and smooth cutting.
Worked well but I wish the center drill didn't have a grit. This will require pre-drilling and when you're done you'll have a hard time removing the part. It has withstood repeated use.
This hole saw had no problem cutting through a concrete block, but it stuck less than an inch like hole saws sometimes do and the shank just snapped. Now I have a brand new hole saw that is useless! A complete waste of money. Do not worry.
I bought this item mainly because of its country of origin which is CLEARLY US in the product description! When I open the envelope, is the first thing I see? MADE IN CHINA! If you are interested in supporting the Chinese economy, this tool is for you! Also, this hole saw drills a nearly 1/8 inch hole and the shank is far off center as they are actually two separate pieces welded together! This thing is a piece of crap and if accuracy is key it will ruin your project! Don't buy!