Die Steel SKD61 + Nitrided
STEPPED EJECTOR PINS WITH GAS VENT –L DIMENSION DESIGNATION / P/L/N DIMENSION DESIGNATION WITH CUTTING FACETS TYPE–
Part Number – L – P – N – E – (KC/WKC ... etc.) GW–ENSF5 – 450.00 – P4.20 – N260 – E0.03 – KC2.5
High Speed Steel SKH51
Alterations
Die Steel SKD61 + Nitrided Die Steel SKD61 Prehardened Die Steel SKD61 Stainless Steel SUS440C High Speed Steel SKH51 + Hard chromate
Alteration details D P.99
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E D + 1 ≦ HC ＜ H
Single flat cutting D/2 ≦ KC ＜ H/2
HC
KC
KC － 0.1 0
R ≦ 0.5
Head thickness change TC = 0.1mm increments E T/2 ≦ TC ＜ T E T–TC ≦ Lmax.−L GW (S) – EJSL C Dimensions N becomes shorter by (T–TC). (Dimension L remains unchanged) GW (S) –ENSF/GW (S) –EJSF C (Dimensions L and N remain unchanged)
Step R
Single face cutting Four faces cutting
＋ SV 5 0
Two flats cutting D/2 ≦ WKC ＜ H/2
WKC
About Designation Unit for Key Flat Cutting
TC － 0.05 0
WKC － 0.1 0
TC
T
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
KAC KBC
10 (Gas vent depth E dimension guarantee range)
4 － E
－ 0.1 0
－ 0.1 0
＋ 0.1
± 0.01
Dowel hole boring E Available when H ≧ 4 X Combination with other than NHC/NHN not available Dowel hole + Spring pin driving E Available when H ≧ 4 X Combination with other than NHC/NHN not available Dowel hole + Dowel pin driving E Available when H ≧ 4 X Combination with other than NHC/NHN not available
T
KAC
KBC
T d ℓ 4 2 3 6 3 5 8
0 d
0 － 5
P
P
（ L － N ）
NC
N
(1) To align the key flat with the retention diameter Unit of designation 0.05mm increments possible
＋ 0.02 0
0 ＋ 0.05
0 ＋ 0.5
T
, L ＞ 500 c L
）
（ 200 ＜ L ≦ 500 c L
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
L
RKC
RKC － 0.1 0
4mm JIS (6/8mm) 10mm
ℓ 1
d
T d 4 2
SV 50 ≦ L–N ＜ 80 80 ≦ L–N ＜ 115 L–N ≧ 115
NCW
P
6 8
5
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
3
T
3.00– 6.99 7.00–19.90
35 35
35 50
35 50
DKC － 0.1 0
DKC
d
ℓ 2
T d 4 2
SKD61 + Nitrided
P –0.01 –0.02 –0.01 –0.02
M Material
SKC Four flats cutting D/2 ≦ SKC ＜ H/2
NCS
Part Number
Head thickness
6 8
5
H Hardness Surface:
900HV– Base material: 40–45HRC
－ 0.1 0
T Tolerance
T
T P dimension tolerance L D 3.5–12 15–20 L ≦ 500
3
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
SKC
Single face cuttingFour faces cutting GW–ENSF GWS–ENSF 4mm (T4)
T
P 0
Range of guaranteed retention diameter (D) precision/Base material hardness/ Range of guaranteed surface hardness for nitriding/Step R (Details D P.97 ) ( Range of guaranteed shaft diameter precision is only for the shaft diameter and does not include the gas vent. )
0 –0.05 (L ＞ 300 c T
0 –0.05 )
–0.005
AG °
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 AG = 1° increments 0 ＜ AG ＜ 360
± 0.5
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
–0.01 –0.02 –0.01 –0.03
–0.01 –0.03 –0.01 –0.04
217
0 °
GW–EJSL GWS–EJSL GW–EJSF GWS–EJSF
KGC
P 0
NHC
0 –0.05
–0.002
6/8mm (JIS)
L ＞ 500
KGC
Tip Diameter Designation Total Length Designation
120 ° 120 °
■ L dimension designation type
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
1 2 3
－ 0.1 0 120 °
NHN
KTC
Part Number
L 0.01mm increments
E 0.01mm increments
H T
P
N
KTC
Type
D
Head tapping E Available when D ≧ 8, H ≧ 13, T = 8 for GW–EJSF/GWS–EJSF X Combination with any other alteration not available
Tip Diameter Total Length Designation Tip Diameter Total Length Designation
MC
D 8
M
100.00–150.00 150.01–200.00 200.01–250.00 100.00–150.00 150.01–200.00 200.01–250.00 100.00–150.00 150.01–200.00 200.01–250.00
50
M4 10 M5 12/15 M6 16/20 M8
MC
70 100
4
3.0
8
Single face cutting GW–EJSL
M × 1
100 125
Tip Process
Single face cutting 0.02–0.05
50
Engraving
5
3.0 3.5 4.0
70 100
9
6
E About flat cutting position Flat cutting position is set at 90° of cutting facet in counterclockwise direction.
100 125
Four faces cutting 0.03–0.05
Four faces cutting GWS–EJSL
Gas Vent
50
Ex: KC
6
5.0
70 100
10
Single face cutting Four faces cutting
100 125
E L−N ≧ 50
■ P/L/N dimension designation type
Head thickness 4mm
Head thickness JIS
Part Number
L 0.01mm increments (L ＞ 500 c 0.1mm increments)
P 0.01mm increments
N 1mm increments
E 0.01mm increments
Type
H T H T
D
Head thickness 4mm
Head thickness JIS
–
3.5
3.00–3.40 3.00–3.90 3.00–4.40 3.00–4.90 3.50–5.40 4.00–5.90 4.50–6.40 4.90–6.90 5.90–7.90 7.90–9.90
– –
65.00–400.00 (600.0)
7
4
8
4.5
Single face cutting GW–ENSF
65.00–500.00 (600.0)
8
•N ≧ 15 (T4) and 50 ≦ (L–N) ≦ 200
5
9
5.5
65.00–500.00
6
Single face cutting GW–EJSF
Single face cutting 0.02–0.05
9
6
10
6.5
4
10
11
Four faces cutting GWS–ENSF
7 8
L − 3
•N ≧
(JIS)
Four faces cutting 0.03–0.05
11 15 17
13 15 17 20 21 25
Four faces cutting GWS–EJSF
and (L–N) ≧ 50
10 12 15 16
65.00–500.00 (700.0)
8.90–11.90 10.90–14.90 11.90–15.90
8
–
–
20 15.90–19.90 E The figures in ( ) for L dimension are applicable for GW−EJSF/GWS−EJSF only. E Nitriding may extend to the head as it is applied after dimension P machining. E To order D3.5 of Head thickness JIS, select GW-ENSF3.5 or GWS-ENSF3.5.
PartNumber – L – P – N – E GW–ENSF5 – 450.00 – P4.20 – N260 – E0.03 GWS–EJSF10 – 620.5 – P9.00 – N480 – E0.03
Delivery Quotation
Order
117
118
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