BEYOND S25S-PCLNR12 (25mm / 1.00" Shank) Right-Hand Internal Boring Bar | Rigid P-Type Lever Lock ISO Internal Turning Toolholder for CNMG 1204 / CNMG 432 Indexable Carbide 80° Diamond Inserts 42CrMo Steel Spindle Repeatability Range Zero-Failure Interrupted

Spindle Repeatability Range Zero-Failure Interrupted Empirically verified across automated multi-hour facing cycles on heavy nodular iron casting blocks

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Steel Grade Speed (Vc m/min) Feed (f mm/rev) Low Carbon Steel 220 - 380 0

"I use these on 4340 and they hold up very well

The DCMT11T304-HR YBM251 is a 55° rhombic positive insert purpose-built for Stainless Steel (M-Class)

BEYOND S25S-PCLNR12 (25mm / 1.00" Shank) Right-Hand Internal Boring Bar | Rigid P-Type Lever Lock ISO Internal Turning Toolholder for CNMG 1204 / CNMG 432 Indexable Carbide 80° Diamond Inserts 42CrMo Steel Spindle Repeatability Range Zero-Failure InterruptedBEYOND S25S PCLNR12 Heavy Duty Rigid P Type Lever Lock Right Hand Internal Boring Bar (25mm 1. 00" Steel Shank) for ISO CNMG 1204 ANSI CNMG 432 Indexable Carbide 80 Diamond Inserts CRITICAL EXCLUSION NOTICE: The indexable carbide boring insert shown mounted inside the tool holder pocket within our product photography or dimensional diagrams is for spatial demonstration and seating alignment visualization purposes only. Carbide inserts are NOT included