Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Pit Bull CHIS43011 Pit Bull CHIS43011 Spring Tube Screwdriver Set
Product description: This 31 piece screwdriver set is a great addition to any tool box. It has a spring tube end for getting into hard to reach areas. Also has a chrome vanadium blade, a magnetized tip and a soft handle for sure-grip. Item is packaged in a hanging clam shell pack. Set includes 9 pieces of bits (6.35 x 25 mm)1 piece ADP hex, 10 pieces of bits Phillips, flat head and star (6.35 x 25 mm) and 10 pieces of 1/4" sockets. The spring tube is 215 mm.
Product feature: SAE socket size attachments: 7mm, 8mm , 9mm, 10mm, 11mm , 7/16" , 3/8" , 11/32" , 5/16", 9/32", MM socket size attachments: 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, Philips head screwdriver attachments: PH1, PH2, PH3, Robertson's screwdriver attachments: S0,S1,S2, ADP, Straight screw driver attachments: 5" , 6" and 7" and More
Product brand: Pit Bull
Target attributes: Power Type
Answer: attribute: power type
value: None
source: None