8 Most Common Size - 3mm, 4mm, 5mm, 6mm, 6.5mm, 7mm, 8mm, 10mm to satisfy all your needs. This drill bits set fits the majority of power drill currently on the market.
Premium Quality - Made of HSS Material with Titanium Coated, the drill bits edge sharp, faster with less effort. Provides 2X life over standard impact drill bits.
Fully Ground Spiral Groove Design - Quickly decreases friction and heat for a faster and cooler drilling performance. 135¡Æ Split Point with straight shank prevents walking and makes drilling precise and faster.
High Drilling Efficiency - The center of the product has sharp serrations, and with its help, the drill can continue to drill horizontally after drilling.Long flutes for efficient chip evacuation.
