Systems and methods are provided for an electric tool (e.g., a power tool) that includes an output driver for receiving an accessory, and an accessory-type detector. A motor of the electric tool is coupled to the output driver for driving the accessory. The power tool also includes an operation trigger for activating the motor and a motor controller. The motor controller includes an electronic processor that is coupled to the accessory-type detector, the motor, the operation trigger, and a memory. The memory stores instructions that when executed by the electronic processor cause the motor controller to detect a characteristic of the accessory from output of the accessory-type detector. The motor controller determines an operational characteristic for the accessory based on the detected characteristic, and controls operation of the motor to drive the accessory according to the operational characteristic when the operation trigger is activated.

A sawing machine includes a base, a pivot mount connected with the base, a support post rotatably connected with the pivot mount, a rocker arm pivotally connected with the support post, a saw blade rotatably mounted to the rocker arm, and a bevel angle control mechanism including a control handle pivotally disposed with a front side of the base and rotatable at different angles, a pull rod unit, a positioning pin unit, a positioning turntable, and a retaining block. With the collaboration among the control handle, the pull rod unit, the positioning pin unit, the positioning turntable, and the retaining block, a three-stage adjustment functions of locking, unlocking, and disengaging at specific angles can be achieved.