Little builders can tackle their own pretend DIY projects with the Portable Box Battery Drill Tool Set. This comprehensive play set includes a battery-operated toy power drill with interchangeable bits, along with a variety of realistic-looking tools and accessories.   Children can practise drilling, fastening, measuring, sawing and fixing using the included toy hammer, saw, pliers, adjustable wrench, screwdriver, level, ruler, bolts, screws and building boards. The different pieces encourage imaginative role play while helping develop fine motor skills, hand-eye coordination and problem-solving skills.   When playtime is finished, the accessories can be packed into the sturdy toolbox, complete with a carry handle for easy storage and transport.