USER GUIDE Thread Helix Angle and Anvil Selection Pitch TPI mm 2.5 10 Use AE Anvils for EX-RH THREADING 9 Special Holder Required ACME STUB ACME and IN-LH Toolholders. trapez (din 103) 3 8 AE or Al+4.5º round (din 405) Use Al Anvils for IN-RH 3.5 7 and EX-LH Toolholders. AE or Al+3.5º 4 6 AE or Al+2.5º 5 5 λ° Standard Anvil (supplied with toolholder) 6 4 3.5 α° 8 3 1.5 ° 10 2.5 12 2 AE or Al+0.5º 16 1.5 Toolholder 5 20 30 40 50 60 70 80 10 mm Diameter Pitch TPI mm 2.5 10 9 Special Holder Required Partial Profiles 60º Partial Profiles 55º ISO, UN, 3 8 AE or Al+4.5º WHIT., NPT, BSPT Use AE Anvils for EX-RH 3.5 7 AE or Al+3.5º and IN-LH Toolholders. 4 6 Use Al Anvils for IN-RH AE or Al+2.5º and EX-LH Toolholders. 5 5 6 4 3.5 8 3 Standard Anvil (supplied with toolholder) 10 2.5 12 2 16 1.5 5 20 30 40 50 60 70 80 10 mm Diamete r Pitch TPI mm 2.5 10 Use AE Anvils for EX-RH Special Holder Required 9 American Buttress and IN-LH Toolholders. Sagengewinde Use Al Anvils for IN-RH 3 8 AE or Al+2.5º (DIN-513) and EX-LH Toolholders. 3.5 7 4 6 Standard Anvil (supplied with toolholder) 5 5 Replacing the α°=3.74 standard anvil 6 4 with a negative 3.5 angle anvil 8 3 Change to Negative Anvil AE or Al-1.5º 10 2.5 γ=1.5 ° will eliminate 12 2 side rubbing 16 1.5 Toolholder 5 20 30 40 50 60 70 80 10 mm Diameter 540 540 ISCAR ISCAR