Gasea 3pcs Countersink Deburring Drill Bit Set, 90 Degree Chamfering Woodworking Hole Countersinker Bit Tool

Seemed a good idea, but the larger of the 3 bits cuts an irregular and off centre countersink.

Reason for 4* is I had to take the burr of the cutting edges before use as it folded over the cutting edge so as unable to cut once de burred all ok.

Great quality reasonable price