Armstrong 78-308 8" Full Screw C-Clamp Square Throat Pattern

This 8" Full Screw Square Throat Pattern C-Clamp by Armstrong is designed for use where a super deep throat is required. The square throat offers up to 89% more capacity than other patterns. Meets or exceeds US Federal Specification GGG-C-406D.

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This 8" Full Screw Square Throat Pattern C-Clamp by Armstrong is designed for use where a super deep throat is required. The square throat offers up to 89% more capacity than other patterns. Meets or exceeds US Federal Specification GGG-C-406D.