Rotor ring FDC-AA grade collet is recommended. 4 Screws Adjustment wrench Easy to measure runout accuracy œRotary holder support œHolder pull-in device Any tool interface can be prepared. (BT, HSK, UTS, SK etc.) High precision Slim design Runout accuracy of the cutting edge can be adjusted as closely as to Zero with “R” Zero holder. Enables tool change by pulling in (wih 4-8kN) and fixing the tool holder. Mueasement range 0-460mm in length “R” Zero holder is a collet chuck with a runout adjustment function to reduce the misalignment of the cutting edge. The accuracy can be adjusted to 0-2ìm in short time. This high precision “R” Zero holder realizes invariant hole diameter, better surface roughness, and longer tool life. Even when runout of cutting tool at chucking side is 1ìm , runout at the edge is much larger when using conventional collet chuck. Having run out problems at the tool tip? NT’s patented R-Zero collet chucks offer the solution to your T.I.R problems! With “R-Zero” function HDZ “R”-Zero Setter SPZ-2 PAT. Conventional Collet Holder “R ” ZERO Holder

Cutting data comparison Example of Use Integration of processes Before adjustment After adjustment 24 22 20 18 16 14 12 10 8 6 4 2 0 Number of holes Hole diameter Variance of hole diame t er before adjustment 1 3 5 7 9 11 13 15 17 19 21 23 25 X Axis Y Axis Number of holes 24 22 20 18 16 14 12 10 8 6 4 2 0 Variance of hole diam eter after adjustment 1 3 5 7 9 11 13 15 17 19 21 23 25 X Axis Y Axis Hole diameter Surface roughness before adjustment Surface roughness after adjustment Runout of the tool tip 15ìm Runout of the cutting edge 2ìm 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 Cutting distance Runout of...