The Dormer G1365.3 is a standard HSS 90° countersink from Dormer's precision tool line, used for deburring and beveling drilled holes in sheet metal and composite assembly. Critical verification: confirm 5.3mm head diameter matches your hole pattern and that HSS material suits your workpiece hardness and production volume.
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.