The INS-US is the definitive companion to the INS-SP spike receiver. Machined from SUS303 stainless steel with high-precision NC cutting, it delivers the high dimensional accuracy and rigidity (200 HV Vickers hardness) required for ideal point contact.
The spike tip is slightly rounded to prevent crushing while maintaining precise point contact. At just φ20 × 9.9 mm, it is compact and unobtrusive. The chic semi-gloss barrel-polished finish blends into any system.
Designed to match the INS-SP for perfect pairing: combined height is 13.9 mm. Can also be inserted into the INS-BS multi-base for expanded tuning options. Four pieces per set.
