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ASTM F340-71(1993)e1 [ Withdrawn ] Specification for Pilot-Type Medical Countersinks (Withdrawn 1997)
standard by ASTM International, 01/01/1993
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Availability date: 07/24/2021
1.1 This specification covers an acceptable countersink instrument intended to countersink a drilled pilot hole in bone to receive the tapered head of a medical bone screw. The specific design covered by this specification incorporates a pilot tip of suitable diameter to engage the pilot hole and a countersink contour for medical bone screws conforming to Specification F543.
1.2 The values stated in inch-pound units are to be regarded as the standard.