Taper-Tip Test Contact
Spring-probe test contact with long taper tip; the sharp cone self-guides onto pads for reliable measurement.
This is a dimension schematic, not a manufacturing drawing. Dimensions match the catalog data; request a quote with the part code to confirm before production.
Code & Size Table
Code, dimensions and tolerance for all 10 variants.
| Code | Diameter (mm) | Length (mm) | Feature | Tolerance | Std |
|---|---|---|---|---|---|
| KONA-TPR-10 | 1 | 14 | taper | h7 | test probe |
| KONA-TPR-14 | 1.4 | 17 | taper | h7 | test probe |
| KONA-TPR-18 | 1.8 | 20 | taper | h7 | test probe |
| KONA-TPR-25 | 2.5 | 23 | taper | h7 | test probe |
| KONA-TPR-30 | 3 | 26 | taper | h7 | test probe |
| KONA-TPR-40 | 4 | 30 | taper | h7 · ⌀4: 0/−0.012 | — |
| KONA-TPR-50 | 5 | 36 | taper | h7 · ⌀5: 0/−0.012 | — |
| KONA-TPR-60 | 6 | 42 | taper | h7 · ⌀6: 0/−0.012 | — |
| KONA-TPR-80 | 8 | 48 | taper | h7 · ⌀8: 0/−0.015 | — |
| KONA-TPR-10L | 10 | 54 | taper | h7 · ⌀10: 0/−0.015 | — |
Prices are for approved members.
Material & Tolerance
The standard material is listed below; also available in steel, stainless, brass and aluminium. Dimensions in mm; tolerances machined to ISO. Deviations (mm) are given for the nominal diameter according to the ISO 286-2 tables; thread tolerances (6g/6H) are to ISO 965. For custom sizes/tolerances, contact us with the part code.
Manufacturing Scope
Taper-Tip Test Contact is a Connector Pins family precision-turned on a Goodway SW-20, covering 10 variants — diameters ⌀1–10 mm, lengths 14–54 mm, standard material Stainless Steel (also steel, brass or aluminium). Every variant's part code, dimension and tolerance is listed below; request a quote with the code you need.
The family is machined from ⌀10 mm bar stock; its longest variant is KONA-TPR-10L at 54 mm. Besides turning, the family requires taper turning. All of it is completed in a single setup, without the part leaving the machine.
The most slender variant is KONA-TPR-10: 14 mm long at ⌀1 mm, a length-to-diameter ratio of 14.0. This ratio is the very reason sliding-head lathes exist. The guide bushing supports the bar immediately beside the cutting point, so there is no deflection; the same part chatters and drifts in diameter on a conventional lathe.
Variants are machined to h7 tolerance; the smallest is KONA-TPR-10 (⌀1 mm) and the largest KONA-TPR-10L (⌀10 mm). The family includes tapered, multi-step variants. Custom sizes, tolerances or materials are produced to the part code on request.
Need a size that isn't listed? We machine to your drawing — CNC contract machining. How these parts are made: What is a Swiss-type lathe?
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