3/8" body 120° 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 3/8" at a 120° included angle, on a 1/4-28 mounting thread.
It takes pilot pins from .1875 to .1935", 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.
For HTC carbide tools, if the uncoated tool is available and coating is needed, estimated time to ship is 3–4 business days. If the tool is not in stock, estimated time to ship is 7–10 calendar days. For items that require manufacturing, contact us for a confirmed estimated ship date.
Unless stated otherwise, 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.
