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.
Document identifier
ISO 721:1991
Title
Rock drilling equipment -- Integral stems
ISO Category
TC 82: Mining - STANDBY
Publication date
1991-01-01
International Relationship
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