1 X Carbide Tip Insert Cutter Negative Rake 12mm Ci3 Round for Woodturning UK

EWT Ci3 size. Negative Rake Angle. 14mm Negative Rake Square 2.0mm Thick 30 Degree M6 Countersunk Hole. 12mm Negative Rake Round 2.5mm Thick 30 Degree M4 Countersunk Hole. 12mm X 2.5mm Thick. (fits Rutlands Mini Set).

eBay