🔧 Drill Smart, Finish Flawlessly!
The Smart-Bit Pre-drilling and Countersinking Tool is engineered for precision drilling in fiber cement boards, featuring a tungsten carbide tip and a unique stop collar to protect surfaces. With a lightweight design and included replacement bits, it's the perfect addition for professionals seeking efficiency and quality in their projects.
| ASIN | B00AE8G2HS |
| Brand | Smart Surface |
| Brand Name | Smart Surface |
| Customer Reviews | 4.1 out of 5 stars 34 Reviews |
| Finish Type | Tungsten Carbide |
| Finish Types | Tungsten Carbide |
| Item Dimensions | 22.9 x 10.2 x 2.5 Centimeters |
| Item Weight | 9 g |
| Item dimensions L x W x H | 22.9 x 10.2 x 2.5 Centimeters |
| Manufacturer | Starborn Industries, Inc. |
| Material | Tungsten Carbide |
| Material Type | Tungsten Carbide |
| Model Number | BDA446RV |
| Number of Flutes | 2 |
| Number of Pieces | 2 |
| Part Number | BDA446RV |
| Point Style | Taper Point |
| Shank Type | Straight |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| UPC | 099385056283 |
| Unit Count | 1.0 Count |
E**.
Effective and durable
Seems expensive but for a specialty bit with carbide cutters it’s actually what you’d expect. Well made and has saved me a lot of time.
C**H
Expensive but worth it...
Done with 1/3rd of an 1100 sq. foot project countersinking for thousands of screws in Hardie backer (.42" thick). Comes bit bits for both thicknesses and it is still countersinking as if brand new. Countersink is deep enough for off-brand tapcons which have a larger diameter head. Glad I paid the relatively high price!
J**8
This bit works, made well.
I know tools and I know once I see them that it will be crap or great. This bit worked so well. I’ve drilled 6 counter sunk holes per hardie board plank, times that by 200 plus planks, and I didn’t have to change the mason bit at all. That’s over 1200 countersunk holes. Very pleased with this purchase. Also they send spare mason bits anyway. How awesome. Thanks for this great helpful tool guys!! 2 thumbs up.
C**N
Failed on the first hole
This product failed on the first hole. The chuck end spins independently from the bit end and pulls out. There is no obvious damage on either end. When the drill bit touches the material it stops spinning and does not cut. Terrible design.
J**R
Work well.
Made installing Hardie Siding on an ICF house much easier using, 9 x 1-5/8 rock on screws. I saw some complaints of the holes being over sized, but in fact this made for easier installation and kept the screws from gripping and pushing the siding out as the screws engaged the studs.
Trustpilot
2 weeks ago
1 week ago