Power Tools
1pcs Drillforce Tools 4.5-40mm HSSCO Cobalt 3 Flute 90 Degree Chamfer Countersink Drill Bits(10/14.4/16.5/20.5/25/31mm)(35mm)
Package Includes: 1* Chamfer Mill Cutter Model Number : 10~31*90 Degree Countersink Drill Bit length : mm DIY Supplies : Metalworking
https://www.bizrate.co.uk/powertools/1pcs-drillforce-tools-4-5-40mm-hssco-oid37208219530.html