Reaming Bits

• Bit type:Dome bit / Reaming bits
• Connection Angle: 6 / 10 / 12 degree
• Diameter of Pilot adaptors: 26 / 28 / 35 / 40 mm etc
• Thread type:R25 / R28 / R32 / R38
• Product description: Reaming bit, also known as pilot reamer bit, is a hole opener that drills a pilot hole to a certain depth and then reams the hole to a larger diameter. were widely used in quarry or mining for blast h
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