• Knurled knob at the end of handle is used for size adjustment.
• Hole size is obtained by measuring over the contact points with a micrometer.
• The gaging surface is a full-round with a flat bottom.
• This permits use in the smallest of shallow holes, slots and grooves, etc.
• Gaging surface is fully hardened to ensure long tool life.
• Extra long for gaging deep and shallow slots and similar work.
• The complete set of four gages covers a range of .125" — .500".
• Includes fitted vinyl case.
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