What Size Drill Bit For Running Romex

To drill a few holes use a 3 4 inch spade bit in your electric drill.

What size drill bit for running romex. Nothing in my code check electrical about it and nothing in the dinky electrical code section of the irc. It s hard to get a straight hole using a regular drill because the drill plus the bit is greater than the 14 5 space you have between joists so you have to start at an angle and try to straighten it out. I need a memory jog on this the correct drill size for 2 12 2 romex thru framing. A right angle drill with a 7 8 auger bit does the job very quickly.

If you go by the 1 3 rule then 1 1 8 diameter is the maximum diameter but that only gives the wire 1 1 8 inch protection from nails and wall board screws. Borrow or rent one if you can. 3 piece flexible drill bit kit is ideal for in wall drilling and contains everything you need to pull up to 1 2 in. For larger jobs rent a heavy duty right angle drill 25 per day and equip it with a 3 4 inch x 6 inch auger bit 7.

Flexible drill bit cat. Once you know the size of the hole you ll need depending on how many wires you plan to put through the hole you ll select the auger bit size that s fit for the job. 53718 makes 9 16 in. Drill holes at least 1 4 in.

The right angle drill allows you to drill holes square to the stud face. Kps050 attaches to the flexible drill bit after the hole has been made and pulls 3 8 in. Secure the drill bit in a drill chuck. Hi what size auger drill bit and brand do people recommend to use with 12 2 and 12 3 romex.

Holes drilled at an angle will wind up oval and therefore larger. It s suggested that you drill holes at least inch bigger than the hole size needed to ensure you don t have a difficult time pulling the wires through. Select a spade bit from a spade drill bit set that is at least 1 4 inch larger than the largest romex cable dimension. Rent a right angle drill and use selfeed or hole saw bits for boring large holes fig.

The larger the hole for the romex wire the better off you are as long as you don t compromise the structural integrity of the 2 by 4. Electrical house wiring mistakes can be deadly so make sure you obtain a permit from your local building department and have an electrical rough in inspection scheduled with a building official when you. Oversize especially for hot water pipes. Wire through your walls.

One inch or 3 4 inch holes would be better. I believe i can run two thru a 7 8 hole but want to be sure it isn t actually 1 that s required. I ll be using a milwakee right angle drill.