8/18/2019 Under Reamed Capcity Table

1/1

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meter 3ocm

30 cm

rings

Length Length

length length

cm cm m m

No. Dia mm cm t t

t

t

t t

t t t t

2

(1)

(2)

(3)

(4) (5)

(6) (7)

(8) (9) (10) (11)

(12)

(13) (14)

(15) (16)

(17)

20 50 3.5 3.5 3 10 18 12 0.9 0.7 4 6 0965 0.55 1.0 1.2

25 62.5 3.5 3.5 4 10 22 12 18 1.15 0.9 6 9 0.85 0.70 1.5 1.8

30 75 3.5 3.5 4 12 25 16 24 1.4 1.1 8 12 1.05 0.85 2.0 2.4

37.5 94 3.5 3.75 5 12 30 24 36 1.8 1.4 12 18 1.35 l-10 3.0 3.6

40 100 3.5 4.0 6 12 30 23 42 1.9 1.5 14 21 1.45 1.15 3.4 4.0

45 112.5 3.5 4.5 7 ‘12 30 35 52.5 2.15 1.7 17.5 25.75 160 1.30 4.0 4.8

50 125 3.5 5.0 9 12 30 42 63 2.4 1.9 21 ,31.5 1.80 1.45 4.5 54