1PC HSS Electric Drill Bit Serrated Grooving Spiral Hole Saw Wood drilling Tool

Features: The cutting edge is sharp and it can be used for drilling thin boards such as wood planks and it can also be used for horizontal sawing after drilling. Fully ground spiral groove design quickly decreases friction and heat for a faster and cooler drilling performance. 135-degree split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed. Specification: Name:Drill Bits Size: 3mm 4mm 5mm 6mm 6.5mm 8mm Surface treatment:Black nitride Material:High-speed steel 4241 Suitable for grooving processing on thin wood wood aluminum and plastic boards. Quantity:1Pc Package included: 1pc Drill Bit Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data.