Evolution CC625 5/8-Inch Diameter x 1-Inch Depth of Cut Cyclone High Speed Steel Annular Cutter

Great bit for the money. I drilled 30 holes in 1/2” plate. Used a coolant/cutting fluid as would be normal for using this tool. Picture of bit is after drilling the holes. There in no discoloration at the tip and it’s still cutting just fine. Worth the money and lasts if used properly.

I questioned these being worth the money, in that I can’t sharpen. I am double framing a truck. I purchased 3, 5/8 cutters. I’ve drilled more than 50 holes, in frame rail, I did have one shatter, 20+ holes in, but that could have been my fault for not being lined up. I’ve drilled 50 + holes, with two bits. 5/8 holes in mild steel is tough, I’m drilling truck frame. I bought 10 5/8 standard drill bits, hoping they’d be enough, with one man sharpening and one drilling? These are the deal, if you have the mag drill, buy them! I did keep them oiled/cooled, but that should be a given? Pleased!

I used this to drill 529 holes in 1/2” mild steel. I was careful to not pull down hard on the drill and used lots of cutting oil. Took maybe 30 seconds or so per hole so took a while. I was expecting to go through several bits for this project but this bit made it the entire way with maybe just a little dulling. Very impressed.

I bought this 5/8" Annular drill bit because, 1- it's an Evolution bit and 2- because of the high ratings it received, However, after drilling only 25 holes in 1/2" steel sheet for my welding table build the bit shattered. The mag drill I used has a water cooling port with constant flow through the center of the drill bit and keeps the bit fairly cool and lubricated during the drilling process. Not sure if it failed because it was defective or because of other reasons, but either way I was very disappointed, especially given the price I paid for the bit.

Having finally bit the bullet and procuring a mag-drill recently, I've been slowly buying annular cutters as the need arises. First few I bought were Jancy Sluggers, but I decided to give these a try as they are also highly rated and somewhat less expensive. I like that these come with the pins without having to dig through the listings, having the buy those separately is a pain (and typically pricey). I used the cutter I purchased to gang drill 1/2 plate (4x plates, so 2" at a time, and yes I got a 2" depth cutter). Cutter performed very well, no chips or even discoloration on any teeth even after drilling a total of 16" of steel. I did use cutting oil (and yes it's required if you're not familiar with machine tooling), nothing too specific, just the general purpose cutting oil I had on hand. Note: If you gang drill as I did, you will have to remove the slugs from each layer as you go, the last bit of the cut always stays on the slug and that will not cut when it's spinning in the hole, this is not a fault of the cutter, there's really no way to prevent this with annular cutters. I am quite pleased with these cutters and will be looking at more of these as I run into a need for them.

i bought 2 of these thinking that the process of drilling 315 holes on my fabrication table will consume both.. boy i was wrong, the bid cut like butter hole 1 until the very last hole 315.. very clean edge and the cutting edge remain sharp through out the whole process. the chip it makes it long like bird nest, just make sure to wear PPE when doing it and lube bottle on your Mag drill , it works very well for me to complete the job.

Excellent cut. Evolution is as good as Hougen and I've always considered Hougen as the best.

This thing is worth its weight in gold. East’s right through 1” steel

Used to drill holes in a double frame truck" works awesome

I can’t be upset with this annular bit at all. For the $27 or whatever it was for this 9/16” x 1” bit I’m very impressed. I just assumed this bit wouldn’t last long but I was wrong. I punched 27 holes in a w18@86 beam, 23 of those holes were through the 1/2” thick web and 4 of them were through the 3/4” flanges. This bit ripped through all the holes without any issues at all. I was using rapid tap to keep the bit lubricated and cool but non the less super impressed with this product. The bit was dulling a little by the end but not much. This one bit still could do another 30 holes I’m guessing, no problem possibly even more. I will absolutely be buying more annular bits from this seller. Holes were super clean, annular bit came with center pin, bit was ejecting the plug cut out perfectly. This is just one of those Amazon finds were I figured it was going to be junk but it’s a real gem. Can’t say it enough, super impressed. Sorry about the picture, the snow makes it hard to see the holes but it’s the only picture I had that shows them.

Used with my mag drill to do 5/8 holes in half inch steel plate. 1 bit did 258 holes and is still sharp. Love these bits!

They drill much nicer than a twist drill and cut a lot more holes befor needing replaced.

Cuts holes, lasts decent.