13-812 HELIX MORTISE BIT W/ DOWNSHEAR Power Tools FeatherDUO contains all the hardware

FeatherDUO contains all the hardware to be used as two individual featherboards

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With the Custom Plug Cutter Drill Guide Kit

or worktable

13-812 HELIX MORTISE BIT W/ DOWNSHEAR Power Tools FeatherDUO contains all the hardware13 16"CD, 5 8"CL Product Description These Mortise heads are designed to screw down onto a Helix Mortise Arbor (Part #HMA 1 4 or #HMA 1 2) for easy transition from one cutting head to the next. The Mortise head is only available with a downshear cutter. 13 812 Spec Fractional DIA" 13 16" Decimal DIA: 0. 812" Cutting Length: 5 8" Overall Length: 7 8"