- Exclusive patented design allows quick change-over from internal or external ring applications
- Simply push button on knob and rotate pivot
- Fits internal and external rings from 1/4" to 2"
- Features three popular tip diameters (0.038", 0.047, 0.070") in 18° or 90° angled tips
- Cushioned grip handles for comfort
- Kits include custom molded impact resistant storage case
- Made in USA
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