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If you do not own a NOVA Dovetail chisel
The dovetail angles on the jaws are originally designed to fit the standard skew chisel.
The skew chisel will naturally form the dovetail angle needed for the dovetail.
Image below illustrates the profile of a typical skew chisel profile and how to correctly
use it to cut a dovetail recess in the workpiece:
Keep the leading edge of the chisel flat onto the workpiece (i.e. Bottom surface of the
mortis/recess). Move the chisel forward and out to form the recess to the required
diameter and depth.
Note:
FOR SAFETY REASONS NOVA STRONGLY ADVISES AGAINST USING ANY OTHER TOOL
APART FROM THE NOVA DOVETAIL CHISEL AND SKEW SCRAPER CHISEL.
Recommended Diameter of the recess
The suitable mortise/recess diameter is dependent on the accessory jaw that is
mounted on the chuck.
For the standard PRO-TEK 50mm jaws that is included in the package:
mortis/recess diameter should be ranging anywhere in between 55mm ~ 65mm
(2.16” – 2.55”).
General rule to determine the suitable diameter and depth of the recess:
1. Recess diameter should at least be 5mm or 3/16” bigger than the outer
diameter of the jaws when completely contracted on the chuck.
2. Recess diameter should at least be 5mm or 3/16” smaller than the outer
diameter of the jaws when completely expanded on the chuck.
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