Ratings & Reviews for IRWIN SPEEDBOR MAX 1/2-in x 6-in Woodboring Tri-flute bit Drill Bit

Excellent bit

Bit provides accurate holes. Does not tear wood as others do.

Definitely a keeper!

I needed a 5/8" bit to bore through the side of a 1/2" thick walled, PVC septic tank riser and this bit did the trick! It was a little hard initially getting it to grab but with a little leverage it did just fine. 5/8" was one of the few bit sizes I didn't already have.

Hold Onto the Drill!

I was building six closet shelves using two closet hanger rods per shelf. The supports were 2x4s, which had me drilling two 1.25” holes per support. The standard paddle bit was about to catch fire trying. I bought THIS, and it DUG IN! Quick & highly effective!

CLEAN cuts

Used to bore wiring holes in vertical studs with a 90* attachment on my drill. Works smooth and clean.

PERFECT DRILL BIT

The product is perfect for intended's and performs well.

Crap

Bought one of these for a project it kept getting stuck. Had to change out to regular spade bit..that worked like a charm. It wasn't the drill either I have a heavy duty Makita corded drill so it wasn't a power issue...the bit I got SUCKED will be taking back today....

Great bit

This is a great drill bit it will last a while. If you hit a nail or soft metal the bit is fried. I agree with the rest of the reviews. You need a good drill to handle this bit. May sure if you use a standard cordless drill you put it on low speed. It will stall the drill out.

works good

first one I bought broke returned for another it works great, I am careful not to put in bind. have drilled 120 1 inch holes. starts clean and is fast

Do not buy

I went to use the drill bits for the second time today, first time using the 1 1/4 bit and I broke the shank on the third 2x4 I attempted to drill through. Unless they go back to 3/8 shank they are not worth spending your money on.

Sucks

I bought this maybe 2 days ago the end that goes in the drill is already stripped out and the thing barely gose through wood any more this bit sucks save your money

The problem is the very tip of the bit. Used on kiln-dried fir, it draws the bit so tightly to the workpiece that the cutting blades bog down almost immediately once cutting starts. Workpiece well-secured, drill set to appropriate speed/power.. makes no difference. Might be suitable for drilling soft wood, but I don't plan to ever try.

One Star Beacuse I Can't Give Zero

This bit is completely useless on a drill press. The problem is actually the little small tip in the center of the bit. It grabs the wood and draws it upward on a press. And I'm not talking balsa, I need to put a lot of holes in a 2" x 8" x 54" piece of pine - even with that much weight, it will draw the wood up. And same time the new weight is drawing the drill head down so without fail the wood is snatched up at an angle and the drill head is pulled down. So unless you build a jig for eve...

Ok i guess

The bit seems to be getting a bit dull after mild use. It still cuts through the wood but does not penetrate the very last 1/8" or so after the lead bit stops predrilling.

Not for most drills

Useless if you don't have an exceptionally powerful drill. Once the screw portion was in and the large section of the bit hit the wood, the drill stopped. Returning it and going back to basic drill bits.