SUMIBORON Small Diameter Boring Bars GME-TH Type External Diameter Large Pitch ● Metricthread ● Whitworth thread GME–TH WF B External threading External LF 36 ■ Parts HF H ■ Holders This figure shows right handed tools. Dimensions (mm) Cutting Cutting Stock Height Width Length edge edge Cat. No. distance height Clamp Support Cap screw Wrench R L H B LF WF HF GME R/L2525TH 25 25 114.7 29.3 25 BX0414 LH030 GME R/L2525THL 25 25 150.0 29.3 25 GTC R/L GT R/L (For support) (For support) BX0820 LH060 GME R/L3232TH 32 32 170.0 36.3 32 (For clamp) (For clamp) F ■ Inserts ■ Recommended Cutting Conditions Threading Work material P Carbon steel P Alloy steel M Stainless steel tool PNA 2-RE 70 to 120 70 to 100 70 to 100 5.8 Cutting speed Vc (m/min) 28.8 Grooving 5.6 5° Cut-Off 8.2 Threading Carbide Pitch Included Nose Cat. No. angle radius ST20E A30 G10E mm Threads/inch PNA RE MTG 40 3 to 4 Q 60 0.3 MTG 50 5 Q 60 0.4 MTG 60 6 Q 60 0.5 MWG 40 Q 11 to 9.0 55 0.3 MWG 50 Q 8 to 6.0 55 0.4 MWG 60 Q 5 to 4.5 55 0.6 This insert is specifically for the GME-TH type holder. F77