Features:

*1.  Made of premium HSS, is durable and sturdy for long-term use. Short size is not easy to shake, ensuring accurate drilling.

*2. Quick change: These 1/4 inch hex shank of hex bit set well fits all power tools, achieving quick change more easily and securely.

*3. High efficiency: Fast replacement composite cone uses drill edged principle drilling and tapping, one-step processing, greatly saves processing steps and time, improves working efficiency.

*4. Wide spiral groove: The tap bit set also has a wide spiral groove, which allows chips to easily escape from the hole.

*5. Application: Easy to operate, suitable for drilling and tapping in aluminum, iron, metal, wood, plastic, etc.

Description:

*1. Material: high-speed steel

*2. Color: blue

*3. Size: M3x0.5mm / M4x0.7mm / M5x0.8mm / M6x1.0mm / M8x1.25mm / M10x1.5mm

*4. Head Diameter: 

     #3 mm: 1/8" 

     #4 mm: 5/32"

     #5 mm: 3/16"

     #6 mm: 1/4"

     #8 mm: 5/16"

     #10 mm: 3/8"

*5. Handle Diameter: 6.35 mm(1/4")

*6. Total Length:

     #M3: 64mm/2.5in

     #M4 & M5 & M6 : 66mm/2.6in

     #M8: 68mm/2.7in    

     #M10: 70mm/2.8in, 

Package Includes:

12 x Hex Shank Drill Bit