Smith Tool 51-010 Tension-Compression Tap Adapter Collet Chuck
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The Smith Tool 51-010 is a tension-compression tap adapter (collet chuck) manufactured in the USA, designed for floating/tapping operations on CNC machining centers and drill presses where axial compliance is required to compensate for spindle-to-tap feed-rate mismatch. The "51" prefix in Smith Tool's numbering system identifies the tension-compression (floating) adapter series, and the "010" suffix designates the collet size — in this case an SI-010 split collet accepting taps in the #0–#10 range (approximately up to 10-32 / #10 tap size), as confirmed by the matching SI-010 collet shown in the second photo. The front-end collet and black oxide–finished steel body feature a knurled grip ring for hand tightening, a set-screw drive collar, and a floating mechanism that allows both push (compression) and pull (tension) travel to reduce tap breakage and thread-pitch errors. This unit is new-old-stock and includes the SI-010 split collet.
Product Specifications
| Brand | Smith Tool |
| Model / MPN | 51-010 |
| Collet MPN (included) | SI-010 |
| Adapter Type | Tension-Compression (Floating) Tap Adapter |
| Collet Series | SI (Smith Tool split tap collet) |
| Tap Size Range | #0 – #10 (matches SI-010 collet) |
| Country of Origin | USA |
| Body Finish | Black oxide |
| Drive Feature | Set-screw drive collar w/ knurled grip ring |
| Condition | New |