5-18
Ⅱ. The speedometer at the time when the pole switch is in low position.
（For TPR-1230,TPR-1230H）
The position for the pole switch.（For TPR-1230,TPR-1230H）
Two speed change lever（low speed）
Speed change levels
Speed（rpm）
44 77 141
∅25-∅40 ∅25-∅40 ∅19-∅25
∅12-∅19
Suitable drilling
diameter (mm)
∅38-∅55 ∅38-∅55 ∅28-∅38
∅22-∅28
Threading (metric)
M16-M20 M16-M20 M6-M16
Suitable automatic feeding step. 1 2 3 1 2 3 1 2 3
Two speed change lever（high speed）
Speed change levels
Speed（rpm）
228 398 750
∅12-∅19 ∅10-∅12 ∅6-∅10
∅3-∅6
Suitable drilling
diameter mm
∅22-∅28 ∅19-∅22 ∅10-∅19
∅3-∅10
threading(metric)
M3-M6
Not suggested. Not suggested.
Suitable automatic feeding step. 1 2 3 1 2 3 1 2 3
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