ISO 721:1991 View larger

ISO 721:1991

M00002638

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ISO 721:1991 Rock drilling equipment -- Integral stems

standard by International Organization for Standardization, 01/01/1991

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$45.00

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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.