12PCS Hex Shank HSS Drill Bits Set For Aluminum Iron Metal Wood Plastic DESCRIPTION Features: *High-Speed Steel Material: Made of high-quality HSS,, and sturdy. Short size is not easy to shake and can drill accurately. *Quick-Change: Hex shank easy to identify, 1/4 inch hex shank fits into power tools more easily and securely. *High Efficiency: Fast replacement composite cone uses drill edged principle drilling and tapping, -step processing, greatly saves processing steps and time, improves working efficiency. *Wide Spiral Groove: The tap bit set also has a wide spiral groove, which allows chips to easily escape from the hole. *Application: Easy to operate, suitable for drilling and tapping in aluminum, iron, metal, wood, plastic, . Specification: *Type: Hex Shank Drill *Material:High-Speed Steel *Color: blue *Quantity: 12pcs *Size: M3-x0.5mm, x0.7mm, M5x0.8mm, M6x1.0mm, M8x1.25mm, M10x1.5mm *Head Diameter:3mm(1/8"), 4mm(5/32"), 5mm(3/16"), 6mm(1/4"), 8mm(5/16"), 10mm(3/8") *Handle Diameter:6.35mm(1/4") *Total Length:70mm/2.8in, 68mm/2.7in, 66mm/2.6in, 66mm/2.6in, 66mm/2.6in, 64mm/2.5in Package Included: 12 x Taps Drill Bit(2*for-M3,M2*,2*M5,2*M6,2*M8,2*M10)