Ø 3 monobloc tungsten carbide cutter to drill very hard steel
• Does not damage the rotating disks
• Can cut a core in half
• Enlarges the keyway to push out the tumblers
• Shaft and bit head manufactured in one piece
• To be used on a straight grinder with rotation speeds between 18,000 and 30,000 rpm
• 3 mm pliers necessary for use on a straight grinder
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