handheld drill 3d model

Create a complete engineering-grade 3D CAD assembly kit for a handheld mini drilling machine powered by a standard RS-555 DC motor. STYLE: Professional mechanical CAD design, realistic engineering blueprint, exploded assembly view, dimensioned technical drawing, clean industrial product design, optimized for FDM 3D printing. MAIN SPECIFICATIONS: • Motor: RS-555 DC Motor • Motor Diameter: 36 mm • Motor Length: 57 mm • Shaft Diameter: 3.17 mm • Power: 12V–24V • Chuck: 0.3 mm–4 mm drill chuck • Coupler: 3.17 mm to 5 mm GENERATE THESE PRINTABLE PARTS: PART 1 — MAIN BODY SHELL • Total length: 140 mm • Width: 45 mm • Height: 45 mm • Ergonomic hand-grip shape • Internal cavity for 555 motor • Ventilation slots on both sides • Screw mounting posts • Wire routing channels • Battery compartment integrated into rear section • Rounded corners • 3 mm wall thickness PART 2 — MOTOR MOUNT • Circular clamp design • Inner diameter: 36.3 mm • Outer diameter: 42 mm • Length: 25 mm • Two M3 screw hole