Mitutoyo 12AAA217 Flat Surface Nosepiece SJ-301/R

Product Description

The MITUTOYO 12AAA217 is a flat surface nosepiece accessory designed for use with the SJ-301/R Surftest portable surface roughness tester. The nosepiece attaches to the tester's probe drive unit and positions the stylus correctly against flat workpiece surfaces during roughness measurement. It is a direct OEM-style replacement or supplemental accessory for shops and field technicians who require accurate, repeatable surface texture readings on flat parts. Metrology technicians, quality control inspectors, and precision machining professionals install this component as part of routine instrument setup or probe configuration changes.

This nosepiece is intended for flat surface measurement applications on the SJ-301/R Surftest portable surface roughness tester. Typical use cases include incoming inspection, in-process quality checks on machined flat surfaces, and final surface finish verification on components such as plates, flanges, and ground or milled faces. It is used in manufacturing, tool and die, aerospace, and general metrology environments where portable surface finish testing is required.

Key Features

• Flat surface geometry positions the stylus for accurate measurement on planar workpieces
• Designed specifically for use with the SJ-301/R Surftest portable surface roughness tester
• OEM accessory ensuring proper fit and measurement integrity
• Compact, single-unit packaging suited for bench and field use

Compatibility

Designed for use with the MITUTOYO SJ-301/R Surftest portable surface roughness tester, as specified by the manufacturer.

Installation Notes

Installation should be performed by a qualified metrology technician or instrument operator familiar with the SJ-301/R tester. Power down or disable the instrument before attaching or removing the nosepiece to avoid stylus damage. Handle the stylus assembly with care during nosepiece changes, as the stylus tip is precision-ground and susceptible to damage from contact or impact. Follow the instrument manufacturer's procedure for nosepiece attachment and verify stylus seating before resuming measurements.