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ER-20 Collet / Spindle Wrench - Huanyang CNC

by BrendaEM

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This is an ER-20 Collet Wrench for a Huanyang Spindle. Wrench is closed for strength--except for bit hole. It has a hole for a lanyard or to hang on pegboard. Wrench socket has radii in the corner, so the fit can be closer to the nut.

On small printers, the wrench can be printed diagonally. At least 60% fill is recommended for strength. Support material will preserve lower filleting. Minor filing of inner surfaces may be needed as tolerances are fairly close to prevent breaking.

The wrench

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