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Hollow electric hammer drill is composed of a guided drill and a connecting rod. It can be fitted to various electric hammers as a boring tool for processing large holes. It is a novel tool for installation and decoration trades.
1, Hex shank
Length: 90 100 110 120(mm)
2, Plus shank
Length: 110 160 200 250 300 350 450 500 600 800 1000 1200(mm)
3, Max shank:
Length: 110 160 200 250 300 350 450 500 600 800 1000 1200(mm)
4, Hex shank mode--II:
Length: 110 160 200 250 300 350 450 500 600 800 1000 1200(mm)
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