Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: 909 LS15CS 15-amp 7 1/4 -inch Dual Laser Circular Saw
Product description: The 909 LS15CS Dual Laser Circular Saw features a powerful 15 Amp motor that tackles tough jobs with ease. Dual Laser Line Generator for improved cutting vision, faster set-up, increased accuracy and safer operation. Magnesium Construction (Guards & Shoe) for superior strength, lighter weight and increased durability. Secondary Laser Activation Button with rubber Inserts provides convenient ease of set up. Adjustable Depth of Cut from 0 to 2 3/8 at 90 for cutting thick material. Spindle Lock allows for quick and easy blade change. Ergonomically Designed Rubber Coated Handles for greater comfort and control. Dust Extraction Facility ensures a cleaner and safer working environment. Input Power 15 Amps, No Load Speed 5000 RPM, Blade Size 7, Bore Size 5/8, Cutting Capacity at 90 2 3/8, Cutting Capacity at 45 1 7/8, Bevel Range 0 - 55 degrees
Product feature: Dual-laser line, Magnesium guards and shoe, 15 AMP - 5000 rpm, 24T TCT blade, fence, blade wrench, Spindle lock
Product brand: 909
Target attributes: Blade Diameter
Answer: attribute: blade diameter
value: 7 1/4 -inch
source: product title