Template:Countersink Bits Buyers Guide

For most non-critical work in Design and Technology, countersinking can be achieved using a Twist Drill twice the diameter of the hole in question.
For more precise work, purpose made Countersink Bits are available.
Choose High Speed Steel' if countersinking steel since ordinary Carbon Steel is suitable only for wood and plastics.


Bosch 1609200315 13.0 x 50 x 1/4-Inch Countersink Hex Drill Bits	XCSOURCE 5pc Titanium Countersink Drill Bit Set - 1/4" to 3/4" BI056	Blue Spot Tools 20310 Countersink Bits (3 Pieces)	UNHO 6 PCS 90 Degree 3 Flute HSS Countersink Cutter Titanium Nitride Coated Chamfer Cutter End Mill Drill Bits Cutting Tool Set	Draper Expert 19234 13 mm Rose Head Countersink Bit	Dormer G136 Hss Straight Shank Countersink 90º 8.00mm