Titanium-Plated Pilot Drill Bit for Hole Saw 3Pcs, Hole Saw Center Drill bit for Metal, Steel, Iron, Wood, Plastic

I was drilling vent holes in 26 ga. R-Panel metal. The carbide bit ripped threw it like hot butter. Although the metal must be secured to a backer board preferably 1-1/2" thick and wider than the bit. The only issue hade is the bits are to short to guide a long enough pilot hole to keep them from snapping off when the carbide teeth would get partially through the metal. Suggest either insert longer center bit into hole saw or purchase plenty of bits that come with the holesaw.

Performed as designed

The bits fit the hole saw chuck as needed.

2 of the 3 broke before I cut 4 holes. Finished with standard drill bit.