JIECHENG Bi-Metal 4 inch Hole Saw with Arbor Mandrel for Cutting Wood,Cornhole Boards,Drywall,Plasterboard,Plywood,Steel,Aluminium,Brass,Copper,Zinc,Tin,102mm

Item came with wrong arbor. The thread size of the arbor was not the same as the thread size of the hole saw.

The shank stripped on first use. Returning.

I havent used it yet but he the way the drill bit attaches to the saw is really a cluster. Could be much simpler

Never failed only used it 3 times yellow me later

Value and precise size of finished hole.

Perfect

I purchased this saw for my outdoor recessed lighting project and the saw would not cut through my soffit. Had to use additional saws and drills. Complete waste of money and time.

Well made and the bi-metal is a plus. Good price. Fast delivery. I used it to install small canless LED lights where you want a nice clean cut to support the fixture. It has the side slots so that you can line it up on a mark easier. The bit is well anchored and comes with small Allen key wrench. The housing is nice a deep and thicker than hole saws that are cheaply made.

Mine actually might be a touch smaller than 6 inches in diameter. If youre thinking of using this to cut recessed lighting can holes, like I did, you will have to ream them out after you cut, like I did.. Other makers make the saw slightly bigger than 6 inches. This one is small than 6 inches. Gave it 3 stars because it was not expensive.

Pretty good quality