I need to buy a drill to make a 75mm dia hole through a double brick wall..
I only have a Bosch 550 GRE.. What else do I need to buy ? and where? Hardware masonery bits only make small holes..
I am looking to buy online or can anyone sell a spare 75mm dia hole maker to me?
Double brick wall is about 25cm thick? You need to buy those very long mansory drill bit to drill many small holes in a circle then slowly chisel it out. I dug a 150mm hole on my house wall for ventilation that way.
PS: I use rotary hammer, not just drill.
This post has been edited by yushin: Jun 4 2017, 09:26 AM
75mm is very big, there is no single drill bit that is that size
what one usually do is drill a few holes alng the 75mm diameter then punch the hole using hammer & chisel
QUOTE(yushin @ Jun 4 2017, 09:17 AM)
Double brick wall is about 25cm thick? You need to buy those very long mansory drill bit to drill many small holes in a circle then slowly chisel it out. I dug a 150mm hole on my house wall for ventilation that way.
PS: I use rotary hammer, not just drill.
yes 10" to 12" thick..
I was thinking there was a masonry hole cut for that size..
There is another brand that make many interesting 18v tools. RYOBI, and I'm surprise its a japanese brand. Their target market is home DIY thus the cheap price and battery format that never change for 20 years. Many used ryobi tool available in taobao
There is another brand that make many interesting 18v tools. RYOBI, and I'm surprise its a japanese brand. Their target market is home DIY thus the cheap price and battery format that never change for 20 years. Many used ryobi tool available in taobao
Thanks for the recommendation.
Used or fake... hmm. Sometime taobao is really flooded with fake items
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QUOTE(weikee @ Jun 6 2017, 08:25 AM)
Thanks for the recommendation.
Used or fake... hmm. Sometime taobao is really flooded with fake items
Learn to compare price among different seller, if its too cheap for new item then probably its a fake. Also buy from long time shop with many feedbacks. For used item the price can really varies a lot tho so depend on your luck lor.
There is another brand that make many interesting 18v tools. RYOBI, and I'm surprise its a japanese brand. Their target market is home DIY thus the cheap price and battery format that never change for 20 years. Many used ryobi tool available in taobao
Ryobi is not new brand. This brand been here for over 20yrs. But not that famous here. It is made in japan.
I have Ryobi orbiter sander. But don't last long. The center bolt easy loose out and the velcro grib doesn't last long. Throw away.
I still have the Ryobi 800W circular saw and the Ryobi chain saw in my store.
Used or fake... hmm. Sometime taobao is really flooded with fake items
I won't get branded thing from China. It actually not cheap given the China tax heavy on import item.
What you see the brand thing cheap in china is the china version which made in china.
This is to avoid the import tax and make it cheaper for the china market. The item might not similar to the outside market.
I have experience where try to get a support from japan the item. Cause there is no english version. Mana tahu it is only for china. And worst, it is a display monitor which is only chinese language.
I won't get branded thing from China. It actually not cheap given the China tax heavy on import item.
What you see the brand thing cheap in china is the china version which made in china.
This is to avoid the import tax and make it cheaper for the china market. The item might not similar to the outside market.
I have experience where try to get a support from japan the item. Cause there is no english version. Mana tahu it is only for china. And worst, it is a display monitor which is only chinese language.
Taobao can be an awesome place to source for items if you know Chinese. For electronics the interface and user manual can be a big problem.
I need to buy a drill to make a 75mm dia hole through a double brick wall..
I only have a Bosch 550 GRE.. What else do I need to buy ? and where? Hardware masonery bits only make small holes..
I am looking to buy online or can anyone sell a spare 75mm dia hole maker to me?
That is big hole.
Forget the bosch 550gre for such a big hole.
Even my Bosch 16re 700w bore a 100mm hole on the wood, like struggling. Hole drill freaking hot. Lastly have to use the makita rotary drill to finish up the job.
You can use concrete bore hole saw. Either diamond tip or tungsten carbide teeth. Need at least Makita rotary drill minimun requirement spec.
You need to take time to bore and not hurry. Drill and stop with plenty of water to cold down the tip.
Even my Bosch 16re 700w bore a 100mm hole on the wood, like struggling. Hole drill freaking hot. Lastly have to use the makita rotary drill to finish up the job.
You can use concrete bore hole saw. Either diamond tip or tungsten carbide teeth. Need at least Makita rotary drill minimun requirement spec.
You need to take time to bore and not hurry. Drill and stop with plenty of water to cold down the tip.
LOL... that's something that i might really need. damn.. and i'm stuck on bosch 18v system now although there are some genuinely interesting 18v tools they have. like this 18v vacuum pump
Jun 4 2017, 08:50 AM
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