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HLOFIZI 3/16 Inch Masonry Drill Bits x 6" Hammer Drill Bit for Concrete, Cement, Brick, Stone, Block, 12 Pack, 3-Flat Shank, Working Length 4 Inch.
Due to optimized flute and spacious spiral design, it’s able to remove dust rapidly from the bore hole, and allowing for quick and easy installations.
Centric tip design for easy centering and fast drilling into concrete and masonry material
Up to 5X longer life for anchor drilling in tough applications
Product Information:
Shank Type: 3-Flat
Masonry Bits Diameter (in): 3/16
Overall Length (in): 6
Drilling Depth (in): 4
Package Include:
12-Piece, 3/16" x 4" x 6" Carbide Tipped Drill Bits
Frank Churriana
2025-09-05 17:02:56
I bought the set of 12 bits to drill 24 holes in concrete block. I figured if each bit can drill at least 2 holes before dulling out, I'd be fine. Well to my pleasant surprise, I only needed one bit. That's right; one bit drilled all 24 holes into concrete block! And it didn't seem to lose its perfomance either. I wonder how many more holes I'll be able to drill with that one bit. If the other 11 bits are as good as the first one I picked, this is the greatest deal I've gotten in years of shopping Amazon. I highly recommed these drill bits.
Book Hog
2025-05-08 14:43:18
Nice bits they cut through the concrete very nicely. A++
Jim C.
2025-04-18 18:57:02
HLOFIZI 1/8th inch masonry drill bits rapidly bore into brick. The bit stays on center when started, and 1/8 inch can be used for pilot holes or temporary support holes for aligning a large object to be mounted. The bit stayed cool during my tests even with a lot of pressure on a hammer drill.The hole needs to be cleaned out a couple of times while boring the full length of the shank.These HOLFIZI bits are very solid and strong, and I would not worry about them breaking. This 12 pack is a good value for high quality masonry bits.
Techno-Dweeb
2025-01-20 10:40:31
These carbide masonry bits work well for me, drilling in brick, bluestone, and concrete. I really like the 3 flats on the shank, that gives a much better grip in a typical 3-jaw chuck. These bits are also about 1/8" longer than typical bits. They work well for me, hope they do the same for you.
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