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2025-07-04 10:55:26
This bit did exactly as advertised. Great qualty and at a good price. I reccomend this suplier and product. It really gets the job done.
Jon G.
2025-06-28 11:38:08
Worked really well in concrete paired with a 1/2†hammer drill went in very easy. Great price for a set of 5.
Some Kinda Filmmaker
2025-05-07 14:54:25
Just finished drilling over 40 holes, 1/2" wide and 6" deep on a (learning) retailing wall. I used it with an SDS-plus adapter on an SDS-max Vevor rotary hammer. I used the same drill bit and did not notice any reduction of performance. I did not find any wear on the tip. I bought a pack of three for $17 (July 2024). So each piece is less than $6. I've never done concrete work of this scale, and drilling was the easiest part.
Ridge
2025-04-05 18:52:19
Did the concrete drilling as expected. Not contractor grade but good for the price.
Richard Moore
2025-04-03 10:47:56
Pretty impressed with these bits! Im getting roughly 120 3.5" holes drilled until they full some. That is great for the price. I can't speak to how they drill through rebar; luckily I didn't hit any on the job I used these on. I will definitely buy again.
Customer
2025-03-28 10:49:37
I can't comment on the longevity of the bit, but I can attest that it drilled through at least a foot of concrete for a condensate line. Packaging, build quality, etc. all seem great.
DBryant
2025-03-22 10:28:55
Bought the product to drill holes for a new pool cover. Worked as expected.
Customer
2025-02-14 12:58:11
It good
Kurt LIM
2025-01-24 09:56:57
Awesome, drill into reinforced concrete like butter. Compare to Makita 4mm drill bit at 50mm(110mm total) in length, these 4"/100mm(150mm/6" total) drill faster with less resistance. Also, the CONFAST 3/16" concrete screw broke when screwing into the hole drilled by the Makita 4mm drill bit. Might be the Confast screw is lousy or the 4mm hole is too big? But 5/32" IS â€3.96875‬, †â€0.03125‬mm smaller than 4mm, I don't think that would made any difference. I would say these drill bit created cleaner hole for the 3/16" screw to bite on. I was kind of disappointed with the first concrete screw I ever tried as it broke but these work wonderfully, Highly recommended!
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