Over the past 10 years I've bought several sets of cheap countersink bits. None of them were good, but they cut beautifully and left smooth, clean countersinks. They fall into the category " Buy once, cry once." Now every time I use them I can't help but smile.
Tool set Stels Tool set, 1/2", 1/4", CrV, plastic case 94 pcs, Stels, 94 pcs, black
45 Review
𧱠Bosch 2607017164 Piece Setter Masonry: Advanced Tools for Precision Masonry Work
20 Review
Bit set DeWALT DT7969-QZ, 32 pcs.
39 Review
Bit and socket set BOSCH Promoline (2.607.017.322), 26 pcs.
24 Review