Page 351 - YG 2019

GS GS GS GV GV GV GV GV GV GS GS

T7336 T7A15 T7616/ Z8/ZA/ZC T7R01/T8R01/THR01
SERIES (LH) (LH) T6616/ TKR03 ZF Z0/Z1/Z2/Z3 Z4/Z5/Z6/Z7 Z9/ZB/ZD T7R02/T8R02/THR02 ST/SI T7406
T8616
USCTI 302 USCTI 302 USCTI
DESCRIPTION USCTI 302A USCTI 302 USCTI 302A USCTI 302A USCTI 302A USCTI 302A USCTI 322 USCTI 322
(Left Hand) (Left Hand) Long Shank
PAGE 485 486 487 491 492 493 495 497 498 501 502
HIGH PERFORMANCE TAPS THREADS UNC/UNF UNC/UNF UNC/UNF UNC/UNF UNC/UNF UNC/UNF UNC/UNF M/MF UNC/UNF UNC/UNF UNC/UNF
RECOMMENDATION TABLE TAP MATERIALS HSS HSS HSS Super HSS HSSE-V3 HSSE-V3 HSSE-V3 HSSE-V3 HSS HSSE-V3 HSS

Super HSS : Premium HSS Metallurgy CHAMFER LENGTH 5P / 2P 5P / 2P 4-5P 2-3P 2-3P 4-5P 4-5P 4-5P 4-5P 1.5-2P 1.5-2P
1.5-2P 1.5-2P 1.5-2P 1.5-2P
P-HSS : Powdered Metallurgy
Bright Bright Bright
HSSE-V3 : 3% Vanadium Alloy HSS-EX SURFACE TREATMENT Bright Bright Steam Oxide TiCN Bright Bright Bright TiN TiN Hardslick Bright
TiN
TiN
HSS-V : Vanadium Alloy HSS TiN TiCN TiCN
SPIRAL FLUTE ANGLE - - - - - - - - - R40° R50°
THREAD DEPTH 2.0D 2.0D 2.0D 3.0D 3.0D 3.0D 3.0D 3.0D 3.0D 2.5D 2.5D
◎= RECOMMENDED
○= SUITABLE HOLE TYPE Blind Blind Blind Blind Blind Blind Blind Blind Blind Blind Blind
Through Through Through Through Through Through Through Through Through
COOLANT
A = Cutting Oil Cutting Speed
T = Oil Emulsion (SFM)
X = Cutting Oil/Oil Emulsion
Hardness Hardness
(HRc) (BHN) COOLANT
Material Material Sub-Group ISO
Group Uncoated Coated

Low carbon steels < 15 < 180 25 - 50 50 - 80 T
Free machining carbon steels P ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
Medium to high carbon steels < 23 < 240 25 - 50 50 - 80 T
Low alloyed steels P ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
Steel
Steel castings & forgings > 24 > 250
Heat-treatable alloy steels P ≤ 38 ≤ 350 6 - 30 10 - 35 X ○
Alloyed tool steels P > 38 > 350 6 - 12 - A
Mold steels ≤ 44 ≤ 420
Free machining stainless steels M < 23 < 240 12 - 35 20 - 50 A ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
Stainless Heat-and corrosion-resistant stainless steels M > 24 > 250 12 - 15 12 - 15 A
Steel Valve stainless steels ≤ 38 ≤ 350
Stainless steel castings M > 38 > 350 12 - 15 - A
Precipitation hardening stainless steels ≤ 44 ≤ 420
Grey cast iron K - ≤ 220 35 - 50 50 - 65 T ○ ○
Cast Iron Nodular cast iron / Chilled cast iron
Meehanite iron / Ductile iron K - ≥ 250 12 - 45 25 - 55 X
Copper Pure and alloyed copper N - - 50 - 60 65 - 100 T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
Free machining brass
Brass N - - 30 - 65 - T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
Alloyed brass
Bronze N 44 < 420 12 - 20 35 - 80 T
Pure Aluminum N - - 50 - 65 - T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○ ○
Aluminum Aluminum alloys
Aluminum alloy castings N - - 40 - 65 45 - 90 T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○ ○
Zinc N - - 25 - 65 50 - 80 T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
Magnesium N - - - 45 - 100 T ◎ ◎ ◎ ◎ ◎ ◎ ◎ ○
718 & 625 INCOn / Waspaloy
Hastelloyn / Invar S ≤ 38 ≤ 350 10 - 15 - A
Nickel Moneln / Incoloy
Alloys
718 Inconel > 38 > 350
A286 S ≤ 44 ≤ 420 10 - 12 - A
Titanium S ≤ 38 ≤ 350 3 - 15 - A
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