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STN is a protected designation of Slovak national technical standards.
Parallel shank twist drills with 12° helix. Medium series. Basic dimensions
WITHDRAWN published on 1.2.1983
Selected format:Parallel shank twist drills. Long series. Basic dimensions
Standard published on 1.6.1988
Selected format:Parallel shank twist drills with 40° helix. Long series. Basic dimensions
WITHDRAWN published on 1.2.1983
Selected format:High-capacity parallel shank twist drills. Medium series. Basic dimensions
WITHDRAWN published on 1.2.1983
Selected format:Left-hand parallel shank twist drills. Medium series. Basic dimensions
Standard published on 1.5.1988
Selected format:Taper shank twist drills. Basic dimensions
Standard published on 1.8.1977
Selected format:Taper shank twist drills with 40° helix. Basic dimensions
WITHDRAWN published on 1.2.1983
Selected format:High-capacity taper shank twist drills. Basic dimensions
WITHDRAWN published on 1.2.1983
Selected format:Taper shank twist drills with reinforced shank. Basic dimensions
Standard published on 1.8.1977
Selected format:Drills. Taper-shank drills for coordinate drilling machines
Standard published on 1.1.1988
Selected format:Latest update: 2026-07-06 (Number of items: 2 286 164)
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