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⚡ Nail it fast, nail it clean — the pro’s secret weapon!
The Greenlee 66PT-1 Nail Eater Bit is a high-performance, heat-treated steel drill bit engineered for electrical professionals. Featuring a self-feeding screw point and patented design, it delivers 30% longer tool life, effortless wood penetration, and precision cutting in tight spaces. Built tough to withstand heavy-duty use, this bit ensures cleaner holes and superior durability on every job.































| ASIN | B001M0MDPM |
| Best Sellers Rank | #150,409 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #30 in Boring Drill Bits |
| Brand Name | Greenlee |
| Customer Reviews | 4.7 4.7 out of 5 stars (168) |
| Finish Types | Black |
| Global Trade Identification Number | 00783310309314 |
| Included Components | Tools & Accessories |
| Item Dimensions | 8 x 8 x 8 inches |
| Item Type Name | Greenlee 66PT-1 BIT,NAILEATER 1.00X18.00 |
| Item Weight | 1.6 Pounds |
| Manufacturer | Greenlee |
| Material Type | Alloy Steel |
| Model | 66PT-1 |
| Number of Flutes | 2 |
| Point Style | Screw Point |
| Shank Type | Hex |
| Surface Recommendation | Steel,Wood |
| Tool Flute Type | Straight |
| UPC | 078331309314 787721718376 783310309314 |
| Unit Count | 1.0 Count |
| Warranty Description | 1 year manufacturer |
A**R
Great product
This worked as expected and made easy work of running some new circuits in the house.
J**C
Best on the market, cant go wrong with these.
Its a greenlee nail eater.. best auger bit they make. nuff said. I bought this one to replace one that had been used almost daily for 2 years without sharpening. Theyre awesome, and you can hit nails with them and the bit will survive, but they last a lot longer if you avoid the nails
C**N
Tool
Works great
S**M
Great product.
I have used Greenlee Electrical products for over 50 years and never ever had a bad product from them. They are a bit more money than some brands and worth every cent of it !
B**I
Good for 3/4 bolt holes
Good for drilling holes in pole for 3/4 bolts use it at work daily
D**L
Finest quality drill bit.
I've used this bit to drill deep holes in a fresh tree stump. It really got the job done. You'll need a good quality and powerful 1/2" drill to drive this bit. Also, be cognoscente of heat buildup. I highly recommend this product.
R**O
Nothing seems to dull it.
I also wrote a review on Greenlee's shorter auger and I'll just repeat some of it here. This bit is tough. I know it's designed to chew through steel nails but I pushed it much harder than that, and it survived. I used it to drill out a wooden 4X4 post embedded in concrete. As I drilled, I repeatedly hit the sides and tip of the bit into the concrete. The surprise came when I examined the bit after this abuse only to find .....nothing. The bit was as sharp as new. No damage whatsoever. Even the screw tip was unscathed. Now I'm not saying it should be used in place of a true concrete bit. That would be silly. But if you need a rough-tough auger, then Greenlee is the way to go.
F**Y
Funcionó de maravilla
M**S
Beautiful tool. The price was stupendous, though it went up a lot after I bought the last one. Made In USA quality for less than Chinese price. Now I hope I won't break my arm when this grabs and the torque on my drill goes to work. Actually cut so well and didn't grab at all like I though it might, wonderful product.
C**Y
Great tool. Good size screw end. Pulls through old growth fir easy where the old bit made me sweat.
Trustpilot
1 month ago
2 months ago