Description: Multi coated optics guarantee superior light transmission and brightness Perfect for auto repair and machinery where threads are specified Suitable for soft tapping metal, aluminum, iron Features: Multi coated optics guarantee superior light transmission and brightness. Perfect for auto repair and machinery where threads are specified. Suitable for soft tapping metal, aluminum, iron. Using highquality materials, strong and durable, has a long service life. Clears chips faster and allows particles to escape easily. Specification: Material: High speed steel Color: as the picture show Total Length: 58mm (Approx.) Shank: 1/4" (6.35mm) hex shank Thread (Inch): 6-32NC (3.5mm),8-32NC( 4.2mm),10-32NC( 5mm),10- 24NC ( 5mm),12-24NC( 5.7mm),1/4-20NC( 6.35mm) Note: Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Includes: 6pcs Hex Shank Plug Drill Bits Package List 1Multi coated optics guarantee superior light transmission and brightness. 2Perfect for auto repair and machinery where threads are specified. 3Suitable for soft tapping metal, aluminum, iron. 4Using highquality materials, strong and durable, has a long service life. 5Clears chips faster and allows particles to escape easily.