P/N 12-01790 is an Economy Slim Micro-Stop designed for precision countersinking and drilling operations in aircraft sheet-metal work. Its compact design allows it to be used in narrow or confined areas that cannot be easily reached with a standard micro-stop.

The tool features a slim 11/16-inch outside diameter, a 1/4-inch shaft, and 1/4-28 female threads. It provides fine depth adjustment in 0.001-inch increments and accommodates cutters up to 1/2 inch in capacity. The tool is rated for operation at speeds up to 3,000 RPM, making it suitable for controlled countersinking applications during aircraft construction, repair, and maintenance.

Part Number: 12-01790
Description: Economy Slim Micro-Stop
Type: Precision countersinking / drilling depth-control tool
Outside Diameter: 11/16 in
Shaft: 1/4 in
Thread: 1/4-28 female
Adjustment: 0.001 in increments
Cutter Capacity: 1/2 in
Maximum Rated Speed: 3,000 RPM
Unit of Issue: Each
Weight: 0.045 kg