Abstract: In order to dismantle the knife feeding motor in TOBSPIN tobacco cutter easily, a special tool was developed based on SolidWorks mechanical simulation design software. The disc type drawing tool assembly incorporates a centering shaft for centering and supporting the suspended portion of the motor, a center threaded rod with M18 trapezoidal thread, a flange 20 mm in thickness, and annularly distributed fixed screw rods for ensuring the force exerted on the motor more evenly. The test results showed that this special tool shortened the dismantling time by 34.5 min/machine, avoided any possible damage to parts, and reduced operators' labor intensity. This tool makes the maintenance work more efficient.