2 Sets Composite Material Faucet Set Countersink Drill Bit

Combination drills: save processing steps and costs, improve work efficiency, drill bits Spiral tapping drills: 6 sizes, fully meet your different needs, induction hardened drill bit, resistant to slight wear, to ensure drilling speed, improve work efficiency, screw threading tool Hex combination drills: these taps are used for tapping in machines and are more precise because they are removed, hex drill bit Metric tap drill: there are a total of 6 pieces of taps in different sizes that you can use to tap various threads, countersink drill bit High-speed steel drill: when drilling, it is necessary to inject water to cool the drill bit, hex combination drills