Description
Product Overview
The Nikken N40 C32 Collet Set is a comprehensive toolholding system built around the proven C32 collet standard, delivered in its original wooden storage case. This set covers a wide spread of bore sizes and taper adaptors — from fine 6mm collets through to 25mm capacity, plus Morse Taper and BSP adaptors — making it a genuinely versatile package for anyone running a milling machine, machining centre, or toolroom drill press that accepts N40 (NT40 / ISO40) spindle tooling. Whether you’re setting up a new shop or rounding out an existing toolholder inventory, this is a practical, ready-to-work collection rather than a single-purpose purchase.
- N40 (NT40 / ISO40) Taper Interface — The N40 taper is one of the most widely adopted spindle standards on knee mills, Bridgeport-style machines, and older CNC machining centres. A positive, self-centring taper contact ensures repeatable tool runout each time you pull a collet — critical when you’re holding small-diameter end mills where even a few thou of runout translates directly into poor surface finish and premature tool wear.
- C32 Collet Series — Full Size Range 6mm to 25mm — The C32 collet is a parallel-bore, slotted spring collet that grips the full circumference of the tool shank. Having the complete progression from 6mm through 10mm, 12mm, 16mm, 20mm, and 25mm in one set means you’re not hunting for individual collets when a job calls for a non-standard cutter diameter — they’re already on the shelf.
- Morse Taper Adaptors (MT1, MT2, MT3) — The inclusion of MT1, MT2, and MT3 sleeve adaptors extends compatibility to the enormous range of drills, reamers, and boring tools with Morse Taper shanks. Rather than buying dedicated MT-to-NT40 adaptors separately, you have all three common sizes here — covering everything from small twist drills up to large step drills and shell reamers.
- BSP Adaptors (BSP5, BSP7, BSP9) plus C Spanner, Drill Chuck & Centre Finder — The BSP (Boring & Spindle Package) adaptors broaden the holding range further, and the included drill chuck means you can run straight-shank drills directly without needing a separate chuck arbor. The centre finder is a practical bonus for job setup — locating hole centres or part edges directly in the spindle.
- Ideal for — Setting up milling machines with NT40 spindles for production runs of mixed cutter diameters; holding MT-shank reamers and drill bits without a separate adaptor purchase; centre-finding and edge-finding during workpiece setup on a knee mill or bed mill; hobby and home shop operators building a complete toolholding system from a single purchase rather than piecemeal acquisition.
Condition
Used (Good Condition / Stored greased in original wooden case)
The set presents well overall. The toolholders and collets have been stored correctly — each piece is individually wrapped in protective film with visible preservative grease (the golden-brown coating seen on the surfaces), which is standard practice for long-term toolholder storage and indicates the previous owner understood how to look after precision tooling. The taper shanks appear free of significant gouging or impact damage from visual inspection, and the collets show no obvious cracking or deformation in the slots. The wooden storage case is intact and functional, providing a proper organised home for every component in the set.
As with any used precision tooling, buyers should carry out basic incoming inspection before putting these to work. Wipe the preservative grease from each taper shank and check for raised burrs or dings on the taper face — any high spots should be dressed with a fine stone before fitting to a spindle. Check collet bores for concentricity with a test bar and dial indicator; most C32 collets will run well within 0.02mm TIR in good condition. The BSP and Morse Taper adaptors should be inspected for fretting or corrosion on the taper seats. The visible surface patina and light oxidation on some pieces is cosmetic and does not affect grip or concentricity. None of the observed wear is expected to compromise the working function of the set, but verification against your own spindle is always recommended practice when taking on second-hand toolholding.
Included
- 1 x Nikken N40 (NT40 / ISO40) Collet Chuck Body — C32 series (qty as per set)
- C32 Collets: 6mm, 10mm, 12mm, 16mm, 20mm, 25mm
- Morse Taper Adaptors: MT1, MT2, MT3
- BSP Adaptors: BSP5, BSP7, BSP9
- 1 x C Spanner (collet nut wrench)
- 1 x Drill Chuck (N40 arbor mounted)
- 1 x Centre Finder / Edge Finder
- 1 x Original wooden storage case
Not Included
- Drawbar (machine-specific — confirm your spindle drawbar thread before use)
- Setting rings or collet accuracy verification gauges
- Any intermediate adaptors beyond those listed above
- 8mm, 14mm Collets
Brand Information
Nikken is a Japanese precision tooling manufacturer with a long-standing reputation in the machining and metrology market, best known for its rotary tables, toolholding systems, and spindle-related accessories. Japanese-manufactured toolholding of this era sits firmly in the upper-mid to premium tier of the market — comparable in manufacturing philosophy to brands such as Sandvik Coromant and BIG Kaiser in terms of ground taper accuracy and consistent collet performance. Nikken toolholders are well regarded in Australian toolrooms and machine shops, where their availability through industrial suppliers and the quality of the ground taper seats have made them a trusted choice for both production and toolroom environments.
Specifications
| Feature | Specification |
|---|---|
| Brand | Nikken |
| Set Name / Model | N40 C32 Set |
| Spindle Taper Standard | N40 / NT40 / ISO 40 (National Taper 40) |
| Collet Series | C32 |
| Collet Bore Sizes Included | 6mm, 10mm, 12mm, 16mm, 20mm, 25mm |
| Morse Taper Adaptors | MT1, MT2, MT3 |
| BSP Adaptors | BSP5, BSP7, BSP9 |
| Additional Accessories | C Spanner, Drill Chuck, Centre Finder |
| Material / Construction | Alloy steel toolholders; hardened and ground taper shanks; spring steel collets |
| Country of Origin | Japan |
| Condition | Used — Good Condition. Stored greased. Light surface patina present. |
| Packaging | Original Nikken wooden storage case |
| Included Items | As listed above — collets, MT adaptors, BSP adaptors, spanner, drill chuck, centre finder, wooden case |
| Not Included | Drawbar, setting rings, calibration gauges |
Keywords
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