Horn Toolholder with Internal Coolant and Indexable Inserts

Originally titled 'Toolholder with Internal Coolant and Indexable Inserts'

The System 216 from Horn is designed for internal grooving in bore diameters from 20 mm (0.787”) and larger.

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The System 216 from Horn is designed for internal grooving in bore diameters from 20 mm (0.787”) and larger. The system consists of toolholders with internal cooling and two-edged indexable inserts with cutting widths of 2 to 6 mm (0.079” to 0.236”). The precision-sintered indexable inserts, made from the AS45 substrate, are available in geometries of 0.5, .1A and .KF to ensure improved chip control and chip breaking, even with long chipping materials.

The toolholders are available in standard shank diameters of 20 mm (0.787”) and larger. These have a groove depth of 7 mm (0.276”) at a projection length of 2× D. Toolholders with g6 quality shanks are available in left-hand or right-hand design. The stable shaft with elliptical cross-section at the boring bar neck provides the basis for strength and high stability. All holders are equipped with internal cooling. Coolant jets are supplied both from a port in the clamping finger and from the side of the toolholder. The coolant jet from the clamping finger is aimed directly to the cutting zone to achieve efficient cooling and longer tool life. Together, the two cooling lubricant jets remove chips from the internal area of the tool in a controlled and efficient manner.

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