China Factory for Pearl Drilling Machine - JC1511 Step Drill Bit – JOCEN

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China Factory for Pearl Drilling Machine - JC1511 Step Drill Bit – JOCEN Detail:

Size:4-22mm,73x22x22mm,shank 8mm.

Number of steps:10.

Point thinning according to DIN 1412C.

Thinning point in cutting edge.

Spiral grooved.

118°pointed angel.

90” stepped angle.

High performance steel.


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 JC1511 Step Drill Bit – JOCEN detail pictures


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China Factory for Pearl Drilling Machine - JC1511 Step Drill Bit – JOCEN, The product will supply to all over the world, such as: , , ,

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