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 high?quality materials, strong and durable, has a long service life. 5Clears chips faster and allows particles to escape easily.Description:_x000D_Multi coated optics guarantee superior light transmission and brightness_x000D_Perfect for auto repair and machinery where threads are specified_x000D_Suitable for soft tapping metal, aluminum, iron_x000D__x000D__x000D__x000D_Features:_x000D_Multi coated optics guarantee superior light transmission and brightness._x000D_Perfect for auto repair and machinery where threads are specified._x000D_Suitable for soft tapping metal, aluminum, iron._x000D_Using high?quality materials, strong and durable, has a long service life._x000D_Clears chips faster and allows particles to escape easily._x000D__x000D__x000D_Specification:_x000D_Material: High speed steel_x000D_Color: as the picture show_x000D_Total Length: 58mm (Approx.)_x000D_Shank: 1/4" (6.35mm) hex shank_x000D_Thread (Inch): 6-32NC (3.5mm),8-32NC( 4.2mm),10-32NC( 5mm),10- _x000D_24NC ( 5mm),12-24NC( 5.7mm),1/4-20NC( 6.35mm)_x000D__x000D_Note:_x000D_Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon_x000D_Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!_x000D__x000D_Package Includes:_x000D_6pcs Hex Shank Plug Drill Bits