ITEM NAME:6pcs damaged screwdriver remover fixed broken screw extractor Features: Material: Made of alloy die steel, which is of high hardness and anti-corrosion, could be used for quite a long period. Flute Specification:#1: M 4, #6, #2: M 5, 8-10#, #3: M 6, 1/4, #4: M 8, 5/16, #5: M 10, 3/8, #6: M12, 1/2. Suitable For: Works for removing stripped, rusted, broken, or corroded screws and bolts; Suitable for industrial screw and bolt removal and for everyday home repair work. Specifically Engineered: With each tap extractor specifically engineered, it could grab speedily, and could grab broken screw taps out easily. Portable: Portable size, you can carry it anywhere. Great for carpenters, handymen, do-it-yourselfers, etc. Specifications: Type: Tap Extractor Set Material: Alloy Die Steel Color: Grey Size: #1, #2, #3, #4, #5, #6 #1: M 4, #6 Full Length: About 45mm/1.77inch Deep Flute: About 7.8mm/0.31inch #2: M 5, 8-10# Full Length: About 45mm/1.77inch Deep Flute: About 8.5mm/3.35inch #3: M 6, 1/4 Full Length: About 60mm/2.36inch Deep Flute: About 10mm/0.39inch #4: M 8, 5/16 Full Length: About 60mm/2.36inch Deep Flute: About 8mm/0.31inch #5: M 10, 3/8 Full Length: About 70mm/2.76inch Deep Flute: About 15mm/0.59inch #6: M12, 1/2 Full Length: About 70mm/2.76inch Deep Flute: About 12mm/0.47inch Package Included: 6pcs/set x Tap Extractor Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement..Specifically Engineered: With each tap extractor specifically engineered. Type: Tap Extractor Set. 6pcs/set x Tap Extractor. Suitable For: Works for removing stripped, rusted, broken, or corroded screws and bolts;.