SPI Small Boring Bars For Blind Holes

• The ultimate small boring bar for blind holes, utilizing indexable carbide inserts.
• Ingenious combination of carbide insert geometry and positioning of angles provide ultimate cutting performance.
• Unrestricted chip-flow due to unique compound cutting angle.
• Round shanks with longitudinal flats for proper radial positioning.
• Shank dia. tolerance +.000 - .001".
• Positive seating of carbide inserts.
• Available with high quality steel shank or carbide shank for vibration free precision boring.
• Precision made in Switzerland.