L dimension designation type
P/N dimension designation, L dimension selection type
P/L/N dimension designation type
High Speed Steel SKH51 Head thickness 4mm
EXTRA PRECISION STEPPED EJECTOR PINS –P/N DIMENSION DESIGNATION,L DIMENSION SELECTION TYPE / L DIMENSION DESIGNATION TYPE / P/ L/N DIMENSION DESIGNATION TYPE–
N
N
N
L
L
L
Part Number – L – P – N – (KC/WKC … etc.) EVSL 2 – 150.00 – P1.5 – N70 – KTC1.5
High Speed Steel SKH51 High Speed Steel
Alterations
Alteration details D P.99
Die Steel SKD61 + Nitrided Die Steel SKD61 Prehardened Die Steel SKD61 Stainless Steel SUS440C High Speed Steel SKH51 + Hard chromate
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E D + 1 ≦ HC ＜ H, D ≧ 1.5
Precision single flat cutting D/2 ≦ VKC ＜ H/2
HC
VKC
VKC － 0.02 0
L
b 1 min. L–N– 5 L–N–10
Head diameter change (precision) HCC = 0.1mm increments E D + 1 ≦ HCC ＜ H–0.3, D ≧ 1.5
VWC Precision two parallel flats cutting D/2 ≦ VWC ＜ H/2
HCC
L ≦ 100.00 L ＞ 100.00
0 － 0.02
b 1 (Range of guaranteed P dimension precision)
R ≦ 0.5
VWC
Step R
（ D ≦ 2 R ≦ 0.3 ）
Head thickness change TC = 0.1mm increments E 2.0 ≦ TC ＜ 4, D ≧ 1.5 EVSL c E 4–TC ≦ Lmax.–L(Dimension L remains unchanged) Dimension N becomes shorter by (4–TC). EVSF c E 4–TC ≦ Lmax.–L(Dimension L/N remains unchanged) EVSG c Dimension L becomes shorter by (4–TC).
Single flat cutting D/2 ≦ KC ＜ H/2
About Designation Unit for Key Flat Cutting
KC
KC － 0.1 0
TC － 0.02 0
TC
4
T = 4
0 －
Two flats cutting D/2 ≦ WKC ＜ H/2
WKC
0.02
WKC － 0.1 0
－ 0.002 0
（ L － N ）
0 － 3
P
N
4mm JIS (6/8mm) 10mm
(1) To align the key flat with the retention diameter Unit of designation 0.05mm increments possible
TRN Adds a relief under the head.
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
L
KAC KBC
－ 0.1 0
－ 0.1 0
KAC
KBC
Numbering at the back part of the head Range of designation and Designation method: D P.100 X Combination with SKC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.100 X Combination with SKC not available
217
T L Dimension Tolerance
T P Dimension Tolerance
Head thick- ness
NHC
Part Number
Type
Tip Face Roughness
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
RKC
+ 5 + 0.1
P/N dimension designation, L dimension selection type
RKC － 0.1 0
M Material SKH51 H Hardness 58–60HRC Range of guaranteed retention diameter (D) precision/ base material hardness/Step R (Details D P.97 ) Overall quenched product. (No annealing on head)
EVSG
P –0.01 –0.02
–
1 2 3
NHN
0 –0.002
EVSL
4mm (T4)
L dimension designation type
P 0
+ 0.01 0
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
–0.005
(2) To designate arbi- trary key flat dimen- sions Unit of designation 0.1mm
P/L/N dimension designation type
Lapping on the tip face E Available when P ≧ 0.6 E Applicable to EVSL/EVSF only
EVSF
DKC － 0.1 0
DKC
TMC
P 0
–0.002
L
SKC Four flats cutting D/2 ≦ SKC ＜ H/2
Tip tolerance alteration P 0 –0.002 c –0.001 –0.003
Tip Diameter Designation Total Length Designation Tip Diameter Total Length Designation Tip Diameter Designation Tip Diameter Total Length Designation
－ 0.1 0
PKC
SKC
■ L dimension designation type
■ P/N dimension designation, L dimension selection type
Part Number
L 0.01mm increments
N 1mm increments
Part Number
P 0.001mm increments 0.300 – 0.900
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 AG = 1° increments 0 ＜ AG ＜ 360
L Selection
P
N
H T
H T
0 °
KGC
Type D
Type D
KGC
50.00 – 60.00 0.3 0.4 0.5 0.6 30 60.01 – 100.00 0.5 0.6 40 100.01 – 150.00 0.6 0.8 50.00 – 60.00 0.3 0.4 0.5 0.6 30 60.01 – 100.00 0.5 0.6 0.8 40 100.01 – 150.00 0.6 0.8 1.0
60
120 ° 120 °
1
Tip Process
When L60/100 N ≧ 15 and (L–N) ≧ 15 When L150 N ≧ 15 and (L–N) ≧ 50
－ 0.1 0 120 °
1
100
0.500 – 0.900 150 0.600 – 0.900
KTC Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
50 60 70
3
Engraving
KTC
3
1.5
60
0.300 – 1.400
Gas Vent
50 60 70
EVSL
4
1.5
100
0.500 – 1.400 150 0.600 – 1.400
EVSG
4
40
60.00 – 100.00 100.01 – 150.00 60.00 – 100.00 100.01 – 150.00 60.00 – 100.00 100.01 – 150.00
2
0.8 1.0 1.2 1.5
4
50 60 70
40
2
100 150 0.800 – 1.900
4
2.5
1.0 1.5 2.0
5
50 60 70
2.5
100 150 0.800 – 2.400 100 150 1.000 – 2.900
5 6
40
3
1.2 1.5 2.0
6
3
50 60 70
■ P/L/N dimension designation type
Part Number – L – P – N EVSG 3 – 100 – P2.900 – N50 EVSL 3 – 150.00 – P2.0 – N70
Part Number
L 0.01mm increments
P 0.001mm increments
N 1mm increments When L ≦ 100.00 N ≧ 15 and (L–N) ≧ 15 When L ＞ 100.00 N ≧ 15 and (L–N) ≧ 50
Order
H T
Type D
50.00–100.00 0.300–0.900 100.01–150.00 0.600–0.900 60.00–100.00 0.300–1.400 100.01–150.00 0.600–1.400
1
Delivery Quotation
3
1.5
EVSF
4
2 60.00–150.00 0.800–1.900 2.5 60.00–150.00 0.800–2.400
4 5
3 60.00–150.00 1.000–2.900
6
103
104
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