This is a Tivoly HSS-Co precision countersink from their standard industrial cutting tools line, designed for creating 90° conical depressions in pre-drilled holes for flush screw seating. Critical verification: confirm the 6.3mm head diameter matches your screw specifications and that the HSS-Co material suits your workpiece hardness.
This document confirms the above specification is available in
the ACG Industrial catalogue. Pricing and availability on request.
Forward to your procurement team to initiate an RFQ.