Power Tools
1/6pcs 3 Flute Countersink Drill Bit 90 Degree Chamfering Tools Chamfer Cutter Chamfering Cutter Wood Metal Hole Drilling Tool(6PCS)
Product Name:Countersunk Drill Type:3 Flute 90 Degree Size:6.3/8.3/10.4/12.4/16.5/20.5mm Length:44-64mm Color:Silver
https://www.bizrate.co.uk/powertools/1-6pcs-3-flute-countersink-drill-oid40191448610.html