1[Upgraded Three Flute Design] The pipe reaming drill bit features three flutes that help distribute pressure, achieving high efficiency, low consumption, and long lifespan. 2[Robust Construction] Made of industrial grade high speed steel with a black coating, this drill bit is resistant to erosion, heat and wear, ensuring a long service life. 3[Efficient and Safe] This drill bit allows for one time expanding or drilling, with limit, will not penetrate the water pipe, use it with peace of mind. 4[Universal Hex Shank] The bit is designed with hex shank for compatibility with various electric hand drills, lithium drills, making it a versatile tool for different applications. 5[Accurate Drilling] The straight concentricity of the bit ensures minimal deviation during hole expansion, providing precise hole that simplifies pipe fitting operations. 1 xPipe Reaming Drill Bit 1 x Plastic Box