ISO 721:1991Published

Rock drilling equipment — Integral stems

Matériel de forage des roches — Fleurets monoblocs

Abstract / scope

Specifies the dimensions. The 19 mm hexagonal integral stems with forged collared shank shall comply with the dimensions shown in figure 1 and given in table 1. The 22 mm stems shall comply with the dimensions shown in figure 2 and given in table 2. The 25 mm stems shall comply with the dimensions shown in figure 3 and given in table 3.

Life cycle

Replaces

ISO 721:1974WithdrawnRock drilling — Integral stemsInternational Standard · Published 1 Jul 1974 · ISO/TC 82