January 20, 2021

SMJ diamond coated countersink bit

This diamond coated countersink bit from SMJ is ideal for additional machining and deburring of shallow holes in carbon chassis and other parts. The maximum diameter of the hole is 10mm while the hex shaft is a 6.35mm meaning it is suitable for most electric screwdrivers.

Source: SMJ [smj-rc.com]

Usage

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