SEC-Grooving Tools GNDType ■ GNDIS Type for Internal Grooving  ● For min. bore diameters from ø14mm or bigger accepted. ● Double-cornered, molded insert similar to the GND series with excellent chip control that prevents chip jamming. ● Mono-block structure, Die Steel body that reduces chattering while extending the holder's tool life. The wide pocket improves chip evacuation Note: Use GXM type inserts exclusive for GNDIS type. Die steel GCM type and GCG type are not compatible because their total lengths are different. One-piece structure Directly sprays onto the rake face of the cutting edge ● Chip control ● Performance agaiust chattering Holder overhang Holder overhang F 80 mm 50 mm 30 mm 80 mm 50 mm 30 mm Grooving Tools Breakage Chattering SCM415 SUS316 SCM415 SCM316 All normally machined during machining occurs Grooving GNDIS Type + GF Breaker Competitor GNDIS Type + GF Breaker Competitor Cut-Off Work material: SCM415/SUS316 Groove width: 3.0 mm Work material: SUS316 Groove width: 2.0mm Overhang: 30, 50, 80 mm Cutting conditions: vc = 100 m/min f = 0.05 mm/rev ap = 2.0 mm Wet Cutting conditions: vc = 100 m/min f = 0.05 mm/rev ap = 2.0 mm Wet Threading ■ Application Example Stable chip control and long tool life through high rigidity tools and a 3D chipbreaker Excellent chip control eliminates roughing step required by competitors. ø26 GNDIS 1,100 ø26 1.7 Competitor A 900 Roughing 2.8 Competitor B 600 Finish Finish 2.5 Output(pcs) 4.8 10 mm Work material: S45C Work material: SCM420 Holder: GNDISR1620-T2046 Insert: GXM N2002S-GF (AC1030U) Holder: GNDISR1620-T2046 Insert: GXM N2002S-GF (AC1030U) Cutting conditions: vc = 150 m/min f = 0.03 mm/rev ap= 1.7 mm Wet Cutting conditions vc= roughing a 50 m/min to finishing at 80m/min f= roughing at 0.07 m/min to finishing at 0.05 mm/rev ap= 2.8 mm, Wet ■ GNDN Type Holder for Undercut  ● Grooving width range from 2~6mm. ● Combined with the RN type chipbreaker to exhibit excellent chip control at the corner portion during undercut operations. ● Chip control 1.0mm Work material: SCM435 Groove width: 3 mm Cutting conditions: vc=100 m/min f=0.1 mm/rev 50 mm Undercut depth = 1.0 mm wet F12