6-3/8”
And the 6-3/8” is the absolute minimum diameter that you will need for 6” recessed can lights.

What size hole do I need for a 4 inch recessed light?

4-3/8″
4″ lights require a 4-3/8″ hole, which is what this hole saw does.

What size hole do I need for recessed lighting?

Another common recessed can light manufacturer is Juno and for their can lights one needs cutout holes of 3-1/4″, 4-3/8″, 5-1/2″ 6-3/4″, 6-7/8″. And this is just for the residential high hats or recessed ceiling lights. Commercial can lights can require cutout holes larger than 8 inches in diameter.

How do you drill into plaster without cracking it?

  1. Equip a power drill with a carbide drill bit. A regular drill bit will dull when drilling through plaster or break if a masonry wall is behind the plaster.
  2. Place a piece of masking tape over the area you are drilling.
  3. Set the drill to its lowest speed setting.
  4. Hold the drill straight and keep it steady.

What size hole do I need for downlights?

40mm
Minimum hole size: 40mm.

What size hole saw do I need to cut down a light?

there are hole saws in any size, just got to find them, rule of thumb is that 1 or 2 mm will be ok, any more and the light will flop about, not sit flush, fall back out. alternatly, get a compass and a jab saw! TLC sell a downlight hole cutter with an adjustable blade and dust catcher.

What is the rating of downlight holesaw Kit 9 piece?

Downlight Holesaw Kit (9 Piece) is rated 4.1 out of 5 by 209 . Rated 1 out of 5 by Daveh100 from No point in getting these. For starters the hole size’s that they say on the box are not the size’s, three out of the six was different.

What size hole saw do I need for electrical conduit?

Electrical conduit hole saw sizes are not the same dimensions as the trade name size of the conduit. When drilling with a hole saw it is important to use a slower spinning drill with a lot of torque rather than a high speed drill. It is best to drill at 400 revolutions per minute (RPM) or slower when using a hole saw.

Are electrical conduit hole saw sizes and knockout punch sizes the same?

Answer: Electrical conduit hole saw sizes and knockout punch sizes for conduit are posted below. NOTE: Some text links go to applicable products on Amazon. Electrical conduit hole saw sizes are not the same dimensions as the trade name size of the conduit.