No hay artículos en el carro
No hay artículos en el carroJunior R.
Comentado en los Estados Unidos el 1 de marzo de 2025
Just what I've been looking for
Customer
Comentado en los Estados Unidos el 6 de junio de 2024
I was very pessimistic about this tool. It's hard to find a hole saw that actually cuts. I was very happy with this product. I rarely review items (this is my first on amazon) but I felt this tool deserved the 5 star.
gbpd015
Comentado en los Estados Unidos el 7 de julio de 2022
I only had one hole to drill to get a sump discharge pipe out of my foundation. I have precast walls which are about 1.5 inches thick, but it's 5000psi concrete, so it's very hard. I rubbed this bit down with some lubricating oil right before drilling. This worked great, went through in less than 5 minutes without having to pull it out to cool or re-oil. I can't really rate longevity with only one hole drilled, but glad I bought it.
Michelle Sheahan
Comentado en los Estados Unidos el 24 de mayo de 2021
I used this tool with a 12" extender and a 5/8-11 HEX shank to cut through 16"s of brick and it worked like a charm. Cut like butter. It has abrasive material on the side to make the hole just a hair width bigger than the whole saw. Made inserting and removing the saw a breeze. Did not dull and was a strong cutter throughout the process. Still in good shape. Was able to push a 1-1/2 PVC pipe in the hole left by this saw so that I can run some wires through the wall. Worked like a champ and is not a one-use tool, it retained its self well
Customer
Comentado en los Estados Unidos el 19 de mayo de 2020
Wasn't sure how well this was going to work but was pleasantly surprised with results. I bought two of these SHDiamtool core drills, a 50mm and a 32mm for custom work on sandstone blocks 2 to 2-1/4" thick. I had 12 blocks that needed one 2" hole drilled completely thru and four 1-1/4" holes drilled an inch deep, not all the way thru.These drills do not come with a pilot drill, so I made a template out of plywood and 2x4s with the same hole sizes and layout as I needed for the blocks. That made it easy to be sure the drill didn't skip or wander when making initial contact with surface of stone. I used a drill press with water coolant and checked a core drill speed chart to make sure I was in the ball park for spindle speed - used 1080 rpm for both sizes - and these things cut thru sandstone really well and quite quickly using only moderate downfeed pressure.This pair of core drills performed well and did exactly what I needed - I would buy them again, but they hardly show any wear on them after 12 holes with the 50mm and 48 half depth holes on the 32mm. Make sure you have or buy the correct arbor for them and you should have no problems if you keep them cool with water, use the correct spindle speed and don't use too much down force.
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