IRAM 5097-1958
Central drill bit (emergency type)

Standard No.

IRAM 5097-1958

Release Date

1958

Published By

AR-IRAM

Latest

IRAM 5097-1958

Scope

Bl This standard establishes the characteristics and dimensions of centering drills. B-2 This standard considers 2 types of centering drills: a) type I, without protective chamfer. b) type II, with protective chamfer.

IRAM 5097-1958 history

• 1958 IRAM 5097-1958 Central drill bit (emergency type)