Vernon 82 Cham-Bits, #21 Drill Size, .1590″ Decimal Diameter, 3/8″ Body Diameter, 7/8″ OAL

• Convert a standard drill into a combination drill & countersink.
• Radial relieved cutting edge provides clean chatter free cutting.
• Fully adjustable, can be located anywhere up & down the flutes of the drill & locked into position with two driving set screws provided.
• Ideal for machining countersinks for flat head machine screws.
• Offered in the most common machine screw clearance hole & tap drill sizes.
  Two fluted cutter snugly fits on the clearance diameter of your drill, enabling it to provide a full & concentric countersink.
• Drill Not Included.

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