Woodworking Groove Spade Drill Bit Sets, Knugoua High Carbon Steel Paddle Flat Woodworker Drill Kits Hole Cutter, Set of 15, 13mm~55mm

Nice selection of bits, not as sharp as I think the large ones should be.

I bought these spade bits for the larger sizes for an anticipated single use of a few of them. All required much sharpening. Unusable out of the box for all but the softest woods. No apparent quality control. Assymetries abound. Clearly not intended for precise work, but sufficed, once sharpened, for approximate work, drilling hardwood, one time.

Great price and they work great!

If you are looking for something to use right out of the box, you might be disappointed. The bits were unable to cut through simple 1x4 wood. The machining in the bits were off too as the alignment for the cutouts were off. I will say they were durable as i tried to cut the wood I pressed hard enough to start a fire in the wood I was drilling. Look elsewhere, as amazon doesn't really carry metric sized bits.

This product was extremely dull out of the box, one of the bits also actually bent multiple times while using and is no longer usable at all after one day of use.

Used the first one and it did not turn smooth. Wobbly and would not drill smooth. Tried another and had the same result.

The blades actually warp and bend. Low low grade steel. Worthless