12 taper degree button bit for rock drilling
Tapered Rock Drill Bits :It's suitable for H22mm and H25mm taper rock drill rods use. It have three taper degree: 7°, 11°, 12°. It's widely used for hard rock(f=8~18) drilling use. Taper button bits is the best sales product.
Taper Button Bits:
1)Type: Taper button bits
2) Shank Hex.Size: 22mm,25mm
3) Diameter: 30-42mm.
4) Taper degree: 7°11°12°
5) Buttons quantity: 4, 5, 6, 7, 8,9,10,12
6) Package: Plastic case,wooden case.
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