Description
Air Capital Microstop and Countersink Kit, Model Number 65001 — BOLTON SKU 67948.
About the 65001 Air Capital Microstop Countersink Kit
The 65001 microstop countersink kit combines an adjustable microstop cage with a set of five piloted countersink cutters for producing flush-fastener countersinks in sheet metal. The microstop cage sets and holds the cutting depth so that each countersink is cut to the same depth regardless of how hard the operator presses, and its nylon-tipped foot bears on the workpiece to reduce marking of the sheet surface. The cage is rated for 3,000 rpm, has a 5/8 in cutter capacity and is driven through a 1/4 in shaft, and it accepts standard 1/4-28 threaded countersinks, so replacement or additional cutters are not restricted to the kit contents. The countersinks supplied are 100 degree cutters with 3/32, 1/8, 5/32, 3/16 and 1/4 in pilots, covering the common rivet and fastener sizes used in sheet-metal assembly.
Key specifications
| Model number | 65001 |
|---|---|
| Rated speed | 3,000 rpm |
| Cutter capacity | 5/8 in |
| Drive shaft | 1/4 in |
| Countersink thread | 1/4-28 (standard) |
| Countersink angle | 100 degrees |
| Pilot sizes supplied | 3/32, 1/8, 5/32, 3/16 and 1/4 in |
| Cage foot | Nylon tipped |
Typical applications
The kit is used for countersinking rivet and flush-fastener holes in aluminium and light-alloy skins during airframe, panel and sheet-metal assembly and repair. The 100 degree cutter angle matches the common flush rivet head form, and the five pilot sizes cover the usual hole range for that work. The nylon-tipped cage suits finished or painted surfaces where a steel foot would mark the sheet.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).

























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