Big Kaiser CK Boring Head EWN32-60CKB3 / 310.301 Daishowa Seiki
Brand new with original box, genuine BIG Kaiser boring head. Size range 32-60mm diameter. https://www.bigkaiser.eu/en/products/boring-tools/fine-boring-heads-with-peripherical-cutting-edge/ewn-fine-boring-heads/310.301.html