7/16" body 100° micro stop countersink, 1/4-28 thread.
A micro stop countersink screws into a micro stop cage, which sets the depth mechanically so every seat comes out the same — the standard way of countersinking for flush fasteners in aerospace work. The cutting body is 7/16" at a 100° included angle, on a 1/4-28 mounting thread.
It takes pilot pins from 3/32 to 3/16", so one cutter covers a range of hole sizes: change the pilot, not the tool.
Available in 2, 3 or 4 flutes and other pilot ranges on request.
If an HTC HSS or cobalt tool is not in stock, estimated time to ship is 10–15 calendar days.
Estimated time to ship is measured in calendar days, from order placement until your order is handed to the carrier. Carrier transit time is additional. Orders may ship sooner. We accept orders awaiting replenishment; please contact us before ordering if you need a specific shipping date.
See our Shipping Policy for details.
