THREA TURNING CONTENTS Technical Information 0 N External Toolholders Inrernal Toolholders Thread Turning s Kit with ifferent s External U-Toolholders Inrernal U-Toolholders U-Thread Turning s Toolholders, Micro Thread Turning s, Micro
THREA TURNING INSERTS Thicker Thread Turning s T Standard T (),1,,0 T T T Thicker T (),,, The thicker insert will not fit in toolholders from, but can be used with holders for thicker inserts. The inserts are available in the most coon profiles for external and internal threading. The price is 1% higher for thicker inserts. Helix Angle To get satisfied cutting conditions the threading insert has to be inclined in the toolholder about the same as the helix angle. The toolholder has always as standard an inclination of which are the optimal for most threads. ou will recieve the correct inclination on the threading insert if you use an anvil according to the table below.,0,,0,,0,, 0, iameter 0 0 0 0 0 0 0 0,,,,, tan λ = π x P λ = standard λ = 0, P λ 0
COE KE Toolholders S E R M S = screw E = external I = internal R = right hand = left hand shank dimension holder lenght insert size Example = 00 = = 0 H = 0 K = = M = P = 10 R = 0 S = T = 00 U = 0 V = 00 s E R.0 ISO C insert size E = external I = internal R = right hand = left hand pitch thread profile carbide grade 1
CUTTING ATA Thread Turning Cutting Speed (V c ) and Material actor ( m ) MATERIA Hardness HB Tensile Strenght Cutting Speed N/ (V c ) m/min - 0 Material actor ( m ) Steel Cast iron Stainless steel Titanium Nickel Copper Aluminium Inconel Graphite ow carbon, C < 0,% Medium carbon, C < 0,% High carbon, C < 0,% ow alloy High alloy Hardened, HRC < Hardened, HRC < Hardened, HRC < amellar graphite amellar graphite Nodular graphite, malleable Nodular graphite, malleable ree machining Austenitic erritic and austenitic Unalloyed Alloyed Alloyed Unalloyed Alloyed Alloyed Unalloyed Brass, bronze High strength bronze Unalloyed Alloyed, Si < 0.% Alloyed, Si < % Alloyed, Si > % 1 < 0 < 0 < < < 0 < < 00 < 0 < 00 < < < 00 < 0 < 0 < 0 < < 0 < 0 < 0 < 0 < 0 < 0 < < 0 < 0 < 0 < 00 < 00 < 0 < 0 < 00 < 00 < 00 < 00 < 00 < 0 < 0 < 00 < 00 < 00 < 0 < 00 < 00 < 0 < 0 < 00 < 0 < 0 < 00 < 00 < 00 0-10 0-0 - 0-0 0-0 0-0 - 0 10-0 - 0-0 - 0 10-0 - 0-0 0-0 0-0 0-0 0-0 0-0 0-0 - 10-0 - 0 00-00 00-00 00-00 0-00 0-0 00-00 0, 0, 0, 0, 0, 1, Threading Methods Tool RIGHT HAN THREA Anvil Rotation irection Tool ET HAN THREA Anvil Rotation irection SER AE + SE AI + SE AI - SER AE - SIR AI + SI AE + SI AE - SIR AI -
Thread Turning CUTTING ATA Number of Passes ISO UN W NPT 0, 1,,,,0,,0,,0-1- 1 1- - -, 1 1 1 1, Material actor ( m ) 0, 1, 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Radial Infeed Each Pass PASS 1 1 1 1 1 1 1 Percentage of the total infeed 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Carbide Grades C Micrograin Carbide with TiAlN coating. Allround Grade with high heat resistance. Use cutting data according to the tables. BC Micrograin Carbide with TiN coating. Suitable for internal thread turning of small dimensions. Cutting speed 0% less than C.
THREA TURNING TOOHOERS external B/H Screw to insert S S S SER SER H SER K SER M SER P SER M SER P SER_00_R SER M SER P SER_00_R Torx key K K K B/H 0 0 0 0 10 10 0 10 0 Spare Parts Screw to anvil A A A 0 0 Anvil AE... AE... AE... The s are for Right Hand Toolholders. or eft Hand specify instead of R. Give Helix Angle for Anvil, ex. AE+0.
d l d1 SIR_000_H0* SIR_000_K0* SIR_00_H* SIR_00_K* SIR_001_* SIR_001_M* SIR_00_P* SIR_00_P SIR_00_R SIR_00_S SIR_000_T SIR_00_P* SIR_00_R SIR_00_S SIR_000_T SIR_00_S SIR_000_T SIR_000_U SIR_000_V 1 0 0 0 10 10 0 00 10 0 00 00 0 00,,,,,,, 1,, 1,, 1, 1,,,, 1,, l,1, 1 1 0 0 0 0 0 d1 0 0 0 0 0 d,0, 1 1 0 SIR_000_H0CB* SIR_000_K0CB* SIR_00_MCB* SIR_00_PCB* SIR_00_RCB* SIR_00_SCB SIR_00_SCB SIR_00_SCB* 1 0 10 0,,,,, 1,, 1, l,1, d1 d,0, 1 1, with Carbide Shank and Internal Coolant Spare Parts 0 0 S S S S S S K K K K K K A A A AI... AI... AI... Screw to Torx key Screw to anvil Anvil THREA TURNING TOOHOERS internal *Toolholder without anvil
M ETERNA INTERNA ETERNA INTERNA METR THREA TURNING INSERTS 0, 0, 0, 1, 1,,,,,0,,0,,,0,0 1,, / / / / / 1/ / / 1/ / 1/ / 1/ / / / 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1,,1, 0, 0, 0, 0, 0, 1,,,,,,,0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1,,1, 1, 1,,,,,,, 1,,,,0, ER_0.ISO_C ER_0.ISO_C ER_0.ISO_C ER_0.ISO_C ER_1.0ISO_C ER_1.ISO_C ER_1.ISO_C ER_1.ISO_C ER_.0ISO_C ER_.ISO_C ER_.0ISO_C ER_.ISO_C ER_.ISO_C ER_.0ISO_C ER_.ISO_C ER_.0ISO_C ER_.ISO_C ER_.ISO_C ER_.0ISO_C ER_.0ISO_C ER_1.0ISOCB_C ER_1.ISOCB_C ER_1.ISOCB_C ER_1.ISOCB_C ER_.0ISOCB_C ER_.ISOCB_C ER_.0ISOCB_C ER_1.0ISOM_C ER_1.ISOM_C ER_1.ISOM_C ER_.0ISOM_C ER_.0ISOM_C ER_.0ISOM_C WITH SINTERE CHIPBREAKER 0IR_0.ISO_BC 0IR_0.ISO_BC 0IR_0.ISO_BC 0IR_1.0ISO_BC 0IR_1.0ISO_BC IR_1.0ISO_C IR_1.0ISO_C 0IR_1.ISO_BC 0IR_1.ISO_BC IR_1.ISO_C IR_1.ISO_C 0IR_1.ISO_BC IR_1.ISO_C IR_1.ISO_C 0IR_1.ISO_BC IR_.0ISO_C IR_.0ISO_C IR_.ISO_C IR_.0ISO_C IR_.ISO_C IR_.ISO_C IR_.0ISO_C IR_.ISO_C IR_.0ISO_C IR_.ISO_C IR_.ISO_C IR_.0ISO_C IR_.0ISO_C IR_1.0ISOCB_C IR_1.ISOCB_C IR_.0ISOCB_C IR_.ISOCB_C IR_.0ISOCB_C IR_1.0ISOM_C IR_1.ISOM_C IR_1.ISOM_C IR_.0ISOM_C IR_.0ISOM_C IR_.0ISOM_C MUTITOOTH
UN 1 1 1 1 1 1, / / 1/ / / 1/ / / 1/ / / 1/ / 1/ / 1/ / 1/ 1/ / / / THREA TURNING INSERTS ETERNA ER_UN_C ER_UN_C ER_UN_C ER_UN_C ER_1UN_C ER_UN_C ER_1UN_C ER_1UN_C ER_UN_C ER_UN_C ER_UN_C ER_UN_C ER_UN_C ER_UN_C ER_UN_C ER_UN_C ER_.UN_C ER_UN_C ER_UNM_C ER_UNM_C ER_UNM_C ER_UNM_C ER_UNM_C 0, 0, 1, 1, 1, 1,,1,,,,1 UNIIE 0, 1, 1, 1,,, INTERNA 0IR_UN_BC 0IR_UN_BC IR_UN_C IR_UN_C 0IR_UN_BC 0IR_UN_BC IR_UN_C IR_UN_C 0IR_UN_BC 0IR_UN_BC IR_UN_C 0IR_UN_BC 0IR_UN_BC IR_UN_C IR_UN_C 0IR_1UN_BC IR_1UN_C 0IR_UN_BC IR_UN_C IR_UN_C 0IR_1UN_BC IR_1UN_C IR_UN_C IR_UN_C IR_UN_C IR_UN_C IR_UN_C IR_UN_C IR_UN_C IR_UN_C IR_UN_C IR_.UN_C IR_UN_C MUTITOOTH IR_UNM_C,0 IR_UNM_C, IR_UNM_C, IR_UNM_C, IR_UNM_C 0, 0, 0, 0, 0, The s are for Right Hand s. or eft Hand specify instead of R. The Price is % higher for. The Price is 1% Higher for Thicker Thread Turning s. Ex TER... All s have ground profile and chipbreaker if nothing else is indicated. 0, 0, 0, 0, 1, 1, 1, 1, 1,,,,,1 0, 1, 1,,,,0,,,
WHITWORTH PIPE THREA G BSPT PIPE THREA BSPT 1 ER_1BSPT_C ER_BSPT_C IR_1BSPT_C IR_BSPT_C ETERNA INTERNA NPT PIPE THREA NPT ETERNA INTERNA NPT RSEA PIPE THREA NPT 1 1 1 1, / / / 1/ ER_NPT_C ER_1NPT_C ER_1NPT_C ER_.NPT_C ER_NPT_C 0, 1, 0IR_NPT_BC 0IR_NPT_BC 0IR_1NPT_BC IR_1NPT_C IR_1NPT_C IR_.NPT_C IR_NPT_C 0, 1, ETERNA INTERNA ETERNA INTERNA THREA TURNING INSERTS 1 1 1 1,,, / / / 1/ / / ER_NPT_C ER_1NPT_C ER_1NPT_C ER_.NPT_C ER_NPT_C ER_.NP_C ER_.NP_C ER_NP_C 0,,,1 0, 1,,,,0 0IR_NPT_BC 0IR_NPT_BC 0IR_1NPT_BC IR_1NPT_C IR_1NPT_C IR_.NPT_C IR_NPT_C IR_.NP_C IR_.NP_C IR_NP_C 0,,,1 1,,,,0 1 1 1 1 1 1 1 1 / / 1/ 0, 0, 1,,,,, 0IR_W_BC 0IR_1W_BC IR_1W_C IR_1W_C IR_W_C IR_1WCB_C IR_WCB_C IR_1WM_C IR_1WM_C IR_WM_C 0, 1,,,,, WITH SINTERE CHIPBREAKER MUTITOOTH MUTITOOTH ER_W_C ER_1W_C ER_1W_C ER_W_C ER_1WCB_C ER_1WCB_C ER_WCB_C ER_1WM_C ER_1WM_C ER_WM_C A wider program of whitworth profiles are available.
0 0,- 0,- 0,- 0,- 1,- 0,-,-,0,-,0 0,- 0,- 0,- 0,- 1,- 0,-,-,0,-,0 ABUT SG,0 PG 1 1 - - - - 1- - -,- - - - - 1- - -,- 1/ 1/ / 1/ THREA TURNING INSERTS / / 1/ / / / 1/ / ETERNA ER_ABUT_C ER_ABUT_C ER_ABUT_C ER_ABUT_C ER_ABUT_C ER_ABUT_C PARTIA PROIE 0 ETERNA ER_A0_C ER_G0_C ER_AG0_C ER_N0_C ER_Q0_C INTERNA 0IR_A0_BC 0IR_A0_BC IR_A0_C IR_A0_C IR_G0_C IR_AG0_C IR_N0_C IR_Q0_C PARTIA PROIE ETERNA ER_A_C ER_G_C ER_AG_C ER_N_C ER_Q_C INTERNA 0IR_A_BC 0IR_A_BC IR_A_C IR_A_C IR_G_C IR_AG_C IR_N_C IR_Q_C AMERAN BUTTRESS 1,,1,1,, INTERNA IR_ABUT_C IR_ABUT_C IR_ABUT_C IR_ABUT_C IR_ABUT_C IR_ABUT_C IR_ABUT_C IR_ABUT_C 0, 0, 1,,1 0, 0, 0, 1, 1,,1,1 BUTTRESS (SÄGENGEWINE) IN 1 ETERNA ER_.0SG_C ER_.0SG_C ER_.0SG_C STEE CONUIT THREA IN 00 ETERNA ER_PG_C ER_1PG_C ER_PG_C 1, 0, 0, 1,,,1 0, INTERNA IR_.0SG_C IR_.0SG_C IR_.0SG_C INTERNA 0IR_PG_BC IR_1PG_C IR_1PG_C IR_PG_C 1, 0, 0, 0, 1, 1,,,1 1, 1,,,,, 1,,, 0, The s are for Right Hand s. or eft Hand specify instead of R. The Price is % higher for.
TR,0,0,0,0,0 R ACME 1 / / / 1/ / STACME 1 / / THREA TURNING INSERTS ETERNA ER_1.TR_C ER_.0TR_C ER_.0TR_C ER_.0TR_C ER_.0TR_C ER_.0TR_C ER_.0TR_C ER_.0TR_C ETERNA ER_R_C ER_R_C ER_R_C ER_R_C ER_R_C ER_R_C ETERNA ER_ACME_C ER_1ACME_C ER_ACME_C ER_ACME_C ER_ACME_C ER_ACME_C ER_ACME_C ER_ACME_C ER_ACME_C ETERNA ER_STACME_C ER_1STACME_C ER_STACME_C ER_STACME_C ER_STACME_C ER_STACME_C ER_STACME_C ER_STACME_C ER_STACME_C TRAPEZ IN 1,, 1,,,,, INTERNA IR_.0TR_C IR_.0TR_C IR_.0TR_C IR_.0TR_C IR_.0TR_C IR_.0TR_C IR_.0TR_C ROUN IN 0 1,,, 1, 1, 1, 1, ACME 1,,1, STUB ACME 1,, 1,,, INTERNA IR_R_C IR_R_C IR_R_C IR_R_C IR_R_C IR_R_C INTERNA IR_ACME_C IR_ACME_C IR_1ACME_C IR_ACME_C IR_ACME_C IR_ACME_C IR_ACME_C IR_ACME_C IR_ACME_C IR_ACME_C INTERNA IR_STACME_C IR_1STACME_C IR_STACME_C IR_STACME_C IR_STACME_C IR_STACME_C IR_STACME_C IR_STACME_C IR_STACME_C 1,, 1, 1,,, 1, 1, 1,, 1,,,,, 1, 1, 1,,1, 1,,, The s are for Right Hand s. or eft Hand specify instead of R. The Price is % higher for. 0
API R V-0.00 Taper IP Taper IP API ROUN OI THREA ETERNA ER_APIR_C ER_APIR_C ETERNA INTERNA IR_APIR_C IR_APIR_C MUTITOOTH V-0.00 OI THREA INTERNA ER_API0_C IR_API0_C 1,, V-0.0R V-0.00 E BUT / / / / / / Taper IP Taper IP Taper IP 0 Taper IP 0 THREA TURNING INSERTS ER_APIRM_C ER_APIRM_C ER_APIRM_C ETERNA ER_API_C ER_API_C ETERNA ER_API0_C ER_API0_C V-0.0R OI THREA INTERNA IR_API_C IR_API_C V-0.00 OI THREA INTERNA IR_API0_C IR_API0_C,1,1,, ETREME - INE CASING OI THREA ETERNA ER_E1._C ER_E1._C INTERNA IR_E1._C IR_E1._C 1,, BUTTRESS CASING OI THREA ETERNA ER_BUT0._C ER_BUT1.0_C IR_APIRM_C IR_APIRM_C IR_APIRM_C INTERNA IR_BUT0._C IR_BUT1.0_C,,, 1,,, 1, 1,,,, Connection or Size / - 1 / REG Connection or Size NC-NC0 NC-NC Connection or Size / REG 1 /, /, / REG Connection or Size - / / - / Connection or Size 1 / - 1 / - 1
THREA TURNING INSERTS ETERNA INTERNA UNJ UNIIE ER_UNJ_C ER_UNJ_C ER_UNJ_C ER_UNJ_C ER_1UNJ_C ER_UNJ_C ER_1UNJ_C ER_1UNJ_C ER_UNJ_C ER_UNJ_C ER_UNJ_C ER_UNJ_C ER_UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C IR_1UNJ_C IR_UNJ_C IR_UNJ_C IR_1UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C IR_UNJ_C 1 1 1 1 1/ 1/ 1/ 1/ 1/ 1/ 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, MJ ETERNA INTERNA METR 1/ 1/ 1/ 1/ 0, 0, 0, 0, 0, 0, 0, 0, ER_1.0MJ_C ER_1.MJ_C ER_1.MJ_C ER_.0MJ_C IR_1.0MJ_C IR_1.0MJ_C IR_1.MJ_C IR_1.MJ_C IR_1.MJ_C IR_1.MJ_C IR_.0MJ_C IR_.0MJ_C
THREA TURNING INSERTS Kit with ifferent s External Thread Turning s ER_C ER_C 1 st. ER_0.ISO_C 1 st. ER_1.0ISO_C 1 st. ER_1.ISO_C 1 st. ER_1.ISO_C 1 st. ER_1.ISO_C M, M- M- M- M M- M-0 M- M-0 1 st. ER_.0ISO_C 1 st. ER_.ISO_C 1 st. ER_.0ISO_C 1 st. ER_AG_C 1 st. ER_AG0_C M1- M1- M- P0,- P0,- M1-0 M0-0 st. ER_.ISO_C st. ER_.0ISO_C st. ER_.ISO_C st. ER_.0ISO_C st. ER_N0_C M0- M- M- M- P,-,0 M-0 Internal Thread Turning s 0IR_Ø_BC st. 0IR_0.ISO_BC st. 0IR_0.ISO_BC st. 0IR_1.0ISO_BC st. 0IR_1.ISO_BC st. 0IR_A0_BC M M- M M-0 M- M- P0,- Recoended holder: SIR_000_H0 0IR_Ø_BC st. 0IR_1.0ISO_BC st. 0IR_1.ISO_BC M- st. 0IR_1.ISO_BC M st. 0IR_W_BC G1/ st. 0IR_A0_BC P0,- M-0 M-0 Recoended holder: SIR_000_K0 IR_Ø_C st. IR_1.0ISO_C st. IR_1.ISO_C st. IR_.0ISO_C st. IR_1W_C st. IR_A0_C M1- G1/- P0,- M1-0 M1-0 M1-0 Recoended holder: SIR_00_K IR_Ø1_C st. IR_1.ISO_C st. IR_.0ISO_C st. IR_.ISO_C st. IR_.0ISO_C st. IR_1W_C M1-0 M1-0 M1- M- M0-0 G-/ Recoended holder: SIR_001_M IR_Ø_C st. IR_1.ISO_C st. IR_.0ISO_C st. IR_.0ISO_C st. IR_W_C st. IR_AG0_C M-0 M-0 M M0-0 G1- P0,- Recoended holder: SIR_00_P IR_Ø_C st. IR_.ISO_C st. IR_.0ISO_C st. IR_.ISO_C st. IR_.0ISO_C st. IR_N0_C M0- M- M-0 M- M- P,-,0 Recoended holder: SIR_00_R
U-TOOHOERS external B/H Screw to insert S S S SER MU SER PU SER_00_RU SER MU SER PU SER_00_RU SER MU SER PU Torx key K K K B/H 0 0 10 0 10 0 10 Spare Parts Screw to anvil A A 0 0 AEU... AEU... The s are for Right Hand Toolholders. or eft Hand specify instead of R. Give Helix Angle for Anvil, ex. AEU+0. Anvil
U-TOOHOERS internal d1 d l 0 0 Screw to insert S S S S *Toolholder without anvil SIR_000_K0U* SIR_00_SU SIR_000_TU SIR_00_SU SIR_000_TU SIR_000_UU SIR_000_VU SIR_000_UU d 0 0 0 0 0 d d1, 0 0 0 0 0 d1 l 1 - - - - - - - l 00 00 0 00 0,,,1,,,,, with Carbide Shank and Internal Coolant SIR_000_K0UCB*,, Torx key K K K K Spare Parts Screw to anvil A A Anvil AIU... AIU...
UE_.ISO_C UE_.0ISO_C UE_.0ISO_C UE_.0ISO_C 0UI_.0ISO_BC UI_.ISO_C UI_.0ISO_C UI_.0ISO_C UI_.0ISO_C,,0,0,0 M ETERNA INTERNA / / /,,1,,,0 1 1 1,,,,, 1 1 1,, METR UE_.UN_C UE_UN_C UE_UN_C UE_UN_C 0UI_1UN_BC 0UI_UN_BC 0UI_UN_BC UI_.UN_C UI_UN_C UI_UN_C UI_UN_C 1, UN ETERNA INTERNA / / / / /,,,,,0,0,0 1 1 1,,,, 1 1 1,, UNIIE TRAPEZ IN TR,0,0,0,0,0,0,0 / / / / UE_.0TR_C UE_.0TR_C UE_.0TR_C UE_.0TR_C UE_.0TR_C UE_.0TR_C* UE_.0TR_C,,,, 1 1 1 1, 1, 1,, 0UI_.0TR_BC UI_.0TR_C UI_.0TR_C UI_.0TR_C UI_.0TR_C UI_.0TR_C UI_.0TR_C* UI_.0TR_C,,,,,0 1 1 1 1, 1, 1,, ETERNA INTERNA U-THREA TURNING INSERTS *Only one cutting edge
ACME ACME 1 / / / / / UE_ACME_C UE_ACME_C UE_ACME_C,, 1 1,, 0UI_1ACME_BC 0UI_ACME_BC 0UI_ACME_BC UI_ACME_C UI_ACME_C UI_ACME_C 0, 0, 0,,,,0,0,0 1 1,, ETERNA INTERNA STUB ACME STACME 1 / / / / UE_STACME_C UE_STACME_C UE_STACME_C,,,0 1 1, 0UI_1STACME_BC 0UI_STACME_BC 0UI_STACME_BC UI_STACME_C UI_STACME_C UI_STACME_C 0,,,,0,0,0,0 1 1, ETERNA INTERNA U-THREA TURNING INSERTS
THREA TURNING TOOHOERS Micro WRCN_00E- WRCN_00- WRCN_00H- WRCN_00J- WRCN_00J- WRCN_00E- WRCN_00- WRCN_00H- WRCN_00J- WRCN_00J- WRCN_00- WRCN_00H- WRCN_00J- WRCN_00J- WRCN_00- WRCN_00H- WRCN_00J- WRCN_00J- WRCN_00H- WRCN_00J- WRCN_00J- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1,,,, 1 1 11 11 1 1 1 1 1 d l,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 Also available in other types of Toolholder d l
THREA TURNING INSERTS Micro d 0 0,-0, 0,- 0,-0, 0,- 0,- 0,- 0,-1, 0,-, 0,- 0,-1, 0-0 - 0-0 - 0-0 - 1 0-1 - 0-0 - 1 0, 1,,,0,0,0,0,0,0 Also available for Grooving and Turning l INTERNA PARTIA PROIE 0 WR0_P0_BC WR_P0_BC WR_P0_BC WR0_P0_BC WR0_P0_BC WR0_P0_BC WR0_P0_BC WR0_P0_BC INTERNA WR0_P_BC WR0_P_BC d d l, 1 PARTIA PROIE l, 0 0,, 0, 0, 0, 0, 0, 0, Minimum Bore iameter To obtain highest possible stability the threading inserts are ground in an angle of. Therefore the minimum bore diameter is dependent on the thread length according to the table below. 0, 1,,,0,0,0,0 Thread enght () 1 1 1 0 0 1,,,0,0,0,0 1,,1,1,1,1,1,1,1,1,1,1,1,,,,,,,,,,,,,,,,,,,,, Minimum Bore iameter = + (thread lenght x 0,0),,,,,,,,,,,,,,,0,,0,