We specialize in metal shafts, precision specialty parts, CFRP (Carbon Fiber Reinforced Plastic) pipe shafts, and non-ferrous metal shafts.By optimizing the manufacturing process, selecting the finest raw materials, and applying unmatched straightening, cutting, and centerless grinding techniques, we deliver high-quality products tailored to your needs.

Drill Rods (Centerless Material)

Drill Rods

Product Features

Processing Dimensions
Outer Diameter: φ0.8–φ60.0mm
Total Length: 1000–7000mm
We specialize in precision machining that goes beyond numerical control limitations. By utilizing advanced grinding technology and skilled craftsmanship, we achieve micron-level accuracy for various materials, including metals, non-ferrous metals, FRP, and PVC, tailored to their hardness and properties.

Outer Diameter Tolerance Roundness Surface Roughness
Standard h7・h6 One-third of the outer diameter tolerance Ry 3.2
(Ra 0.8)
Special Specifications h5 0.002 Ry 0.4
(Excluding 20L from one end) (Ra 0.2)
標準
外径公差 h7・h6
真円度 外径公差の1/3
面粗度 Ry 3.2
(Ra 0.8)

特別仕様
外径公差 h5
(片端20L除外)
真円度 0.002
面粗度 Ry 0.4
(Ra 0.2)

List of Compatible Steel Types

Carbon Steel for Machine Structural Use S45C ・S45CF ・S48C
Carbon Tool Steel SK4F
General Structural Steel SS400
Chromium-Molybdenum Steel SCM415・SCM415F・SCM435・SCM435H
Hard Steel Wire SWRH57B・SWRH62B・SWPA・SWPB・SWPC
Alloy Tool Steel SKS21・SKS8
High Speed Tool Steel SKH51・SKH56
Free-cutting steel SUM23・SUM23L・SUM24L
Titanium Pure titanium (Class I-IV), TAB6400H (6AL-4V alloy)
Stainless steel Austenitic SUS303・SUS303Cu・SUS304・SUS316・SUS316L SUS310・SUS310S
Martensitic SUS403・SUS416・SUS416F・SUS420J2 SUS420F・SUS440C
Ferritic SUS430・SUS430F
Ecipitation hardening system SUS630・SUS631J1