Drillpro M35 Cobalt Countersink Drill Bit 1-4/2-5/5-10/10-15mm Deburring Chamfer Drill Bit
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Arrived after about three weeks, very well packed. Haven’t tested it yet but it looks like a good countersink bit. Pleased with this purchase.
The quality is really good, would buy them again.
Excellent
well packaged and received in undamaged condition..works perfectly
Well-made drill, with biconical blade
looks good quality cut nicely
Good quality countersink bits. Design minimizes chatter and the cobalt steel holds up well Hard to beat if purchased on sale.
Nice drill bit, very sharp and cuts perfectly. Packed in a small plastic container for storage and for good protection during transit. Delivery in 12 days (CN -> NL)
I bought this forest to mill holes in soft steel. I haven't used it yet but I think it will do, given the hardness of the steel used for its manufacture.
Have not tested it yet, but it looks like Strong Cobalt.