Gear Cutting & Finishing Machines
| Gear Hobbing Machines | (NC): |
Hamai Yutaka |
Kashifuji | Mitsubishi Heavy | Seiwa |
| Spline Hobbing Machines | (NC): | Hamai | Mitsubishi Heavy | ||
| Gear Shaping Machines | (NC): | Karatsu | Mitsubishi Heavy | Yutaka | |
| Bevel Gear Cutting Machines | (NC): | Yutaka | |||
| Gear Grinding Machines | (NC): |
Honda Engineering Okamoto |
Karatsu Seiwa |
Kashifuji | Mitsubishi Heavy |
| Gear Shaving Machines | (NC): | Kanzaki | Mitsubishi Heavy | Yutaka | |
| Gear Lapping Machines | (NC): | Yutaka | |||
| Gear Honing Machines | (NC): |
Honda Engineering Seiwa |
Kanzaki Toyo Advanced |
Kashifuji | Nachi-Fujikoshi |
| Gear Tooth Chamfering Machines | (Non-NC): | Okamoto | Yutaka | ||
| (NC): |
Howa Yutaka |
Kanzaki | Kashifuji | Okamoto | |
| Gear Tooth Deburring Machines | (Non-NC): | Kanzaki |