730 Series carbide stop counterbore cutters may be used in all popular adjustable-stop or micro-stop type countersinking units utilizing a threaded shank drive.

They combine the advantages of Craig’s 850 Series carbide aircraft counterbores with the positive stop feature of the adjustable-stop countersinking units.

730 Series cutters excel in cutting highly abrasive materials, and are recommended for spotfacing the “difficult to machine” and “exotic” materials in which high speed steel will not perform satisfactorily. Also recommended for any application where longer tool life is desired.

Special “D” cutter diameter may be readily grounded from standard size listed. Special cutters given prompt attention. All cutters supplied with 1/64 corner radius. Maximum noncutting diameter is 1/32 larger than pilot hole, see sketch. Use pilots with “H” head diameter 1/32 minimum larger than “S” shank diameter. For pilot information see 755 Series.

Special “D” diameter’s and/or radii subject to quote.