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Tap hole Drill Rod

It was widely used in big steel mill for delivering liquid steel specially from blast furnace. A blast furnace tap hole drill is provided having an elongated feedshell which supports a percussion drill, drill rod assembly, and a centralizing drill rod support disposed between the percussion drill and a stationary forward end drill rod support.

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Product Specification

Tap hole Drill Rod
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Mode	Sizes	Min.inner.Dia(mm)	Min.thickness(mm)	Weight(kg/m)
B19	19 +0.3/-0.1	5.5	5.5	2.26
B22	22 +0.4/0	6.1	6.6	3.06
B25	25 +0.6/0	6.8	7.6	3.96
B28	28 +0.9/+0.2	8.3	8.5	5.1
B32	32 +0.6/-0.3	8.8	9.5	6.48
B35	35 +0.6/-0.5	9.5	10.5	8.18
B38	39 +0.3/-0.6	13	10.5	9.92
B45	46 +0.4/-0.1	14.5	13.25	13.05
D32	32 +0.4/-0.3	8.8	10.0	5.83
D38	39 +0.5/-0.9	13	10.5	8.34
D45	46 +0.5/-0.9	14.5	13.25	11.75
D51	52 +0.6/1.0	16	15.5	15.09
Ø25 - Ø55		5.5	5.5	depends