Can anybody perhaps help. I need to drill a number of holes in reinforced concrete and have so far hit rebar in three holes approx 4 inches down. The hole sizes vary between 3/4 and 1 inch in dia. What would be the most cost efective way of dealing with this problem? The steel varies between 1/2 and 5/8 inches .
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Advise Needed In Drilling Rebar In Concrete
- Thread starter stone
- Start date
- Joined
- Feb 23, 2012
- Messages
- 34
There are special rebar bits made for drilling rebar in concrete.
http://www.relton.com/rb1demo.htm
Typically a hole is drilled in concrete with a rotary hammer drill with a carbide tipped bit. When rebar is encountered, the hammerdrill is removed and the rebar bit of the same size is inserted in the hole in a non-hammer drill, the rebar is drilled, then the hammerdrill reinserted in the hole and continued drilling. All that being said, there are rotary hammer bits made that are capable of drilling rebar in concrete. The problem with hitting rebar in concrete is you never hit the center of the rebar, it is usually off to the side and tends to jam a two edged carbide bit.
http://www.relton.com/rb1demo.htm
Typically a hole is drilled in concrete with a rotary hammer drill with a carbide tipped bit. When rebar is encountered, the hammerdrill is removed and the rebar bit of the same size is inserted in the hole in a non-hammer drill, the rebar is drilled, then the hammerdrill reinserted in the hole and continued drilling. All that being said, there are rotary hammer bits made that are capable of drilling rebar in concrete. The problem with hitting rebar in concrete is you never hit the center of the rebar, it is usually off to the side and tends to jam a two edged carbide bit.
