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The IRWIN TOOLS Metal Countersink Drill Bit Set features precision ground 82° tips for countersinking most machinable metals, wood, and plastic. Made from industrial grade high-speed steel for increased durability, each countersink has a black oxide coating to resist corrosion and a five-flute design that reduces vibration for smoother drilling and an extended life. Set includes 1/4", 3/8", 1/2", 5/8", and 3/4" countersinks, and a drawer Case
From the Manufacturer
IRWIN High Speed Steel Countersinks feature a precision-ground 82-degree tip that makes them ideal for countersinking into most machinable metals. They're made from industrial grade high speed steel for increased durability, and they include a black oxide finish for added corrosion resistance. The five flute design reduces vibration for smoother drilling and extended life. Plus, the 1/4" round shank fits all handheld and stationary drills.
D. Lippert
2025-08-25 10:17:24
I purchased this to replace an inexpensive set I had purchased a couple of years ago. The Irwin set is of much higher quality.
hi
2025-08-18 11:40:29
Had 1/8 steel sheet that I had pre drilled 5/16 holes about 20 of them. Used one of the bits so that I could use counter sunk screws. Very durable still looks new. I did use oil as I went and kept the drill speed on the slow side.
Matthew D.
2025-08-11 10:28:51
Man, this set is awesome! At big box home improvement stores these bits that can countersink through metal are going for $12 and up a piece! This was a total no-brainer cost-wise, and they are very high-quality. I’m building our home right now and have to countersink in both wood and metal brackets on a daily basis and this set has made life wonderful for me with my countersinking needs. Sweet little tidy box it comes in. Love it. Irwin you guys are good!
keitha
2025-06-03 11:59:15
works well does the job well
Shailesh
2025-03-23 17:45:56
So far used on aluminum and works great.
Gerard Weik
2025-02-18 17:20:13
Irwin makes good stuff. I already have a couple of sets of pliers and levels. What I like about these countersinks is that you don't have to drill a hole ahead of it to get your countersink. I have some countersinks that have a drill bit ahead of them and, most of the time, that's fine but sometimes you can drill too far. I could remove the drill bit from the countersink but that's a bit of a pain, tiny allen wrench and all and then you have to put it back on. This is handy to just grab one of these to make your countersink.
Joe
2025-01-20 11:55:33
Bought without a real expectation of them lasting very long due to the price, but I've been impressed. The 3/4" has run over a dozen holes in mild steel now for counter sunk bolts and still cuts like new. Rigidity helps a lot to eliminate chatter due to the cutter engagement on the larger sizes. Overall, I've been impressed and will buy again when I need to.
JEM
2025-01-07 17:11:17
Great selection of sizes. Something for every need and good price.
SmartFinder
2025-01-02 16:11:13
Excellent product at a great price - even the box is good quality
Cesar Herrera
2024-12-11 16:25:48
Es un excelente producto a un muy bajo precio, ya realicé varias pruebas, muy fuerte material y gran rendimiento, solo hay que dejar descansar o enfriar un poco y trabaja super bien, lo único malo es el servicio de mensajerÃa ya que son demasiado groseros y hay que ir hasta el auto de ellos a recoger el producto ya que ellos no quieren bajarse de su camioneta, que lastima
RachetHead
2024-12-10 10:48:29
These countersinks worked very well in a wood board. The bits made the countersink's as I needed with light amount of force.
David Woods
2024-12-07 16:50:05
Well made and packaging is great for long term storage (so you don't lose them) . Would buy again
Felicia Lam
2024-11-21 12:27:18
received exactly the item ordered. excellent service
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