Anvil selection for SAGE threading standard only

The table below defines the recommended insert inclination angle (β) and anvil selection according to helix angle (φ) for single-start threading and according to lead angle (φL) for multi-start threading, depending on the thread turning method for machining asymmetric threading profile according to SAGE thread standard only.

thread turning method
Production of ri with rightght-hand threading -hand holderProduction o with le LHf left-hand thread ft-hand holdering
RHorLH
RH
Anvilselection
Positive AnvilsNegative Anvils
Threading helix (lead) angleφ(φL)φ(φL)>5.6°
Inclination angleβ2.5°1.5°(std)0.5°-0.5°-1.5°
lCToolholderAnvil designation
16 (3/8)EX RH OR IN LH EX RH OR IN LHAE 16 +2.5 AI 16 +2.5AE 16 +1.5 AI 16 +1.5AE 16 +0.5 AI16 +0.5AE 16 -0.5 AI 16 -0.5AE 16 -1.5 AI 16 -1.5
22 (1/2)EX RH OR IN LH EX RH OR IN LHAE 22 +2.5 AI 22 +2.5AE 22 +1.5 AI 22 +1.5AE 22 +0.5 AI 22 +0.5AE 22 -0.5 AI 22 -0.5AE 22 -1.5 AI 22 -1.5
27 (5/8)EX RH OR IN LH EX RH OR IN LHspecial solutionAE 27 +2.5 AI 27 +2.5AE 27 +1.5 AI 27 +1.5AE 27 +0.5 AI 27 +0.5AE 27 -0.5 AI 27 -0.5AE 27 -1.5 AI 27 -1.5
22U (1/2U)EX RH OR IN LH EX RH OR IN LHAE 22U +2.5 AI 22U +2.5AE 22U +1.5 AI 22U +1.5AE 22U +0.5 AI 22U +0.5AE 22U -0.5 AI 22U -0.5AE 22U -1.5 AI 22U -1.5
27UEX RH OR IN LHAE 27U +2.5AE 27U +1.5AE 27U +0.5AE 27U -0.5AE 27U -1.5
(5/8U) Standard EX - Anv IN - AnvilEX RH OR IN LH anvil supplied with tool il for external threading for internal threadingAI 27U +2.5AI 27U +1.5AI 27U +0.5AI 27U -0.5AI 27U -1.5
Positiv Feed Towae Anvils rds the ChuckFeNegative ed TowardsAnvils the Tailstock
+φ(φL)-φ(φL)°
−β
1.5° const.1.5° const.