HOME > Machining Work > Deep hole drilling

Deep hole drilling

Deep hole drilling

Surface roughness examples in 80mm-deep-hole drilling
(hole dia. 3.0 mm, hole depth 80 mm)

80mm deep hole drilling surface roughness samples.FUTA-Q

surface roughness example
drilling:   Ra 0.67 – 1.83
gun-drilling: Ra 0.43
reaming:  Ra 0.13

160mm-deep-hole drilling with bore polishing

160mm deep hole drilling + Bore polishing.FUTA-Q,Ltd.

Hole dia.1.7 mm, depth 160 mm, surface roughness Ra 0.015

small-diameter deep hole drilling

We provide minimum deviation from straightness for small-diameter deep hole drilling, for example; deviation from linearity ≦ 0.05mm, inner surface roughness ≦ Ra 0.4 for hole dia. 0.1 mm, hole depth 2.5 mm. 

small-diameter deep hole drilling.FUTA-Qsmall-diameter deep hole drilling.FUTA-Q