

⚡ Drill smarter, not harder — the Speedbor Max is your woodwork game-changer!
The IRWIN SPEEDBOR Max Speedbor Drill Bit Set features a self-feeding screw-point tip and three cutting spurs for ultra-fast, clean holes with minimal breakout. Its 4-inch length and grooved hex shank ensure compatibility with all 1/4" quick-change chucks, including impact drills, making it perfect for tight spaces and professional-grade wood drilling. Designed for durability and efficiency, this 6-piece set is a must-have for any serious DIYer or pro.

| ASIN | B00LLGRQZY |
| Best Sellers Rank | #8,974 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Wood Drill Bit Sets |
| Brand | IRWIN |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 101.6 Millimeters |
| Date First Available | July 7, 2014 |
| Department | Unisex-Adult |
| Finish Type | Brushed |
| Global Trade Identification Number | 00042526916762 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.4 ounces |
| Item dimensions L x W x H | 1.22 x 6.1 x 9.25 inches |
| Item model number | 1877239 |
| Manufacturer | IRWIN |
| Material | Blend |
| Number of Flutes | 3 |
| Number of Pieces | 6 |
| Point Style | Screw Point |
| Product Dimensions | 1.22 x 6.1 x 9.25 inches |
| Set Name | SPEEDBOR MAX 4IN OAL 6PC CLAM SET |
| Shank Type | Hex |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| UPC | 042526916762 |
| Unit Count | 1.0 Count |
A**R
Worked Perfect, much better than a Paddle Bit!
Was using one of these within an hour after receiving.....needed to make 8, 1" inch holes in treated 4 x 4's.....not an issue, worked excellent, a paddle bit would've been destroyed, just let the bit feed itself thru the wood. Good buy for me, thank you
E**E
The only? sensible way to run cable through 2x4 studs
You could use a spade bit I suppose: push, struggle and take a break after the second one. With these bits you pretty much touch the tip to the wood, trigger the drill and sit back and watch. No push required. The threads on the tip suck the bit through the wood. You'll have time and energy to spare, to wipe off the shavings at the far end. The short bit length, ideally in combination with a right-angle drill or adapter, gets you in even when studs are narrowly spaced. If you're a first-time DIYer I strongly suggest you read up on the electrical code on drilling through studs. Do it wrong and you could cause a fire and/or weaken the stud.
G**N
good quality bits
Works way better than the blade type bits.
D**E
Good drill to quickly make a sloppy hole in soft wood
These are fine for what they're designed for, which is making a quick sloppy hole in soft wood. They're designed to pull rapidly into the wood. If that's what you want, these are a great tool. But understand, they arenot suitable for drill press use or in fact pretty much any situation where you want to control the feed rate. They are also not suitable for hardwood or anything where you want to finish with a smooth-sided hole.
A**A
Nice shorties for drilling through 2xs for electrical
These have always worked well for me and I occasionally wear certain ones out so I but the assortment each time. Im pretty hard on these in that I hot nails and screws which are the kiss of death. There are ones that tolerate hitting metal better but even those aren't meant for hitting heavy guage and structural screws.
T**M
These are great bits and the 4" length is great for wiring.
These 3 wing bits are so much better than spade bits. They're faster, they clear chips much better, and they are much less likely to jam up. They do require a drill with some torque, though. A good 3/8" cordless will run up to 3/4" easily, but I think a 1/2" drill is probably a good idea for 1" bits. If you have a side handle, use it. The 4" length is great, because it's plenty to get through 2x lumber, and it's short enough that many regular drills have plenty of room to drill between 16" studs, so you don't need a right angle. With a right angle drill, it'll get into some tight spots. This isn't a woodworking bit, so it will often/usually not make a pretty exit. It's for construction work. I've run the 6" size on extension to fish in ceilings, and they work great for that. The recesses allow the extension to lock onto the bit, so much less risk of losing it. Much better and faster than extensions that use set screws.
G**O
Good
Good
L**.
Disappointed
The bits look like they were shook in a bucket of bolts before packaging , as the blade edges were dinged up and not sharp
H**Y
Accurate
F**O
La marca lo dice todo, excelente calidad
D**S
Ces mèches ne percent pas le bois, juste sur 1 à 2 mm de profondeur !!! Lot inutilisable.
N**E
These augers are brilliant. Perfect for drilling holes in studs and joists for routing wiring and plumbing. The great advantage is that they are short so the drill and the auger can fit between studs or joists, then you can add an extension to reach the next stud, I use the (https://www.amazon.ca/dp/B089KWBFMY?ref=ppx_yo2ov_dt_b_fed_asin_title) Freud 1/4 inch 12 and 6 inch extensions. These auger bits are fast. True as one reviewer pointed out, if you hit a nail, it will blunt the cutting tip, but the bits only cost $5 apiece. These Speedbors are much faster, much easier to use and less user effort than spade bits. Highly recommended, I just ordered my second set after boring hundreds of holes for Romex (NMD). A tip, you can bore the initial hole with a smaller bit, and then switch to a larger bit for a bigger hole.
I**A
bom
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