| 摘要 |
An auxiliary dado shaft to support a plurality of rotary saw blades in a laminated pack for cutting wide grooves and dados, is provided with a central bore for receiving a through bolt for simultaneous securement of the blades together and engagement of a mating thread in the motor drive shaft. A tubular socket on the inboard end of the auxiliary dado shaft is adapted to engage the stubshaft of the drive motor and is secured thereto.
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