Efficient Universal Drilling Thickened Accessory Review

[High Quality]:It is made of high-quality YG6X alloy as raw material.The process of oxynitriding of the cutter head strengthen the drill hardness. [8 Different Sizes]:3mm,4mm, 5mm, 6mm,7mm ,8mm,10mm, 12mm,suitable for your different needs. It can be installed in the general electric hand drill, bench drill.Machine drill fixture range is 10mm and above. [Excellent Workmanship]:Full-grinding and anti-rust treatment, clean and burr-free. The drill is wear-resistant and durable. Fully automatic polishing, every piece is uniform. [Unique Cross Angle Design]:Low resistance to cutting, feature drilling stably, fast speed, not breaking the border. Opening neat, smooth, no broken edges, no tremor phenomenon, chip easily. [Wide Range of Use]:Professional glass and tile drill bits provide smooth and accurate drilling in ceramic tiles, marble, thin iron plate, mirrors and glass.