Description
Product Overview
Holding bore tolerances of a couple of hundredths on a VMC or manual mill is the kind of job where a boring head earns its spot in the toolbox. Once you’ve set a bore with a drill and need to bring it to a precise size — whether you’re fitting a bearing race, finishing a reamer lead-in, or hitting an H7 tolerance — a quality Japanese fine boring head is the tool for the job. The KKS ABH-23 is the industry reference in Japan for compact, precision fine-boring work, with hardened and ground micro-adjust screws that let you dial in the cut to the hundredth without guesswork or crashed parts. New.
- KKS ABH-23 fine boring head — Japanese-made, known for precise, repeatable diameter adjustment and long service life under shop use. 32mm parallel shank, 23mm body.
- Direct-reading 0.05mm graduation with vernier interpolation down to 0.01mm — the standard format for KKS’s small-to-mid ABH sizes.
- Ground micro-adjust screw (not cast) — gives consistent adjustment feel across the full diameter range, and remains accurate after years of use.
- Accepts standard KKS ABH-system boring bars and tool bits — including 60° square-bit (A-type), 90° square-bit (B-type), and throwaway-insert boring cutters (T/C-type). Cutters/bits are sold separately.
- Ideal for CNC milling centres (on a BT/NT/HSK holder), manual milling machine work, fine-finish boring, bearing bore fitting, jig boring, and toolroom one-offs where a clean finish and precise diameter are required.
Condition
New (Unused).
This ABH-23 is brand new and unused. The body shows no shop wear, the adjustment mechanism turns smoothly through its full range with the expected crisp detent feel, and the bit clamp screw operates correctly. Straight onto a holder and into the spindle.
Boring bars, tool bits, and throwaway cutters are sold separately and are not included — source these to suit your intended bore range and finish requirements.
Included:
- 1 x KKS ABH-23 Fine Boring Head (body)
- 2x braised carbide cutting tips
- 1x HSS blank
Brand Information
KKS (Kyushu Kikai Seisakusho) is a long-established Japanese precision tooling manufacturer specialising in boring heads, facing heads, and related milling tool-holders. Their ABH fine-boring head series is widely distributed throughout Asia and Europe and is considered a benchmark for precision fine-boring on manual mills and CNC machining centres — often specified alongside better-known names like BIG Kaiser and Wohlhaupter for similar work. A KKS boring head in the drawer is the mark of a shop that cares about bore finish and repeatable diameters, not just ballpark hole sizes.
Specifications
| Feature | Specification |
|---|---|
| Brand | KKS (Kyushu Kikai Seisakusho) |
| Model | ABH-23 |
| Shank | 32mm |
| Type | Fine Adjustable Boring Head |
| Series | ABH Fine Boring Series |
| Adjustment Graduation | 0.05 mm direct reading |
| Fine Adjustment | ~0.01 mm via vernier interpolation |
| Compatible Cutters | 60°/90° square-bit and KKS-pattern throwaway boring cutters (sold separately) |
| Mount | Compatible with KKS ABH shank/holder system (check your interface) |
| Country of Origin | Japan |
| Condition | New — Unused |
| Included | Boring head body, 2 carbide cutting tips 1 HSS blank |
Keywords
KKS ABH-23, KKS boring head, KKS fine boring head, Japanese boring head, ABH23 fine boring, KKS ABH series, machining centre boring head, VMC boring head, precision boring tool, Kyushu Kikai boring head, fine adjustable boring head, toolroom boring head
