Total length designation type
High Speed Steel SKH51 Head thickness 4mm
STRAIGHT EJECTOR PINS –L DIMENSION DESIGNATION TYPE–
L
Part Number – L – (KC/WKC … etc.) EPH–L5 – 210.00 – TC3
High Speed Steel SKH51 + Hard chromate Die Steel SKD61 + Nitriding High Speed Steel SKH51
Alterations
Quotation
Alteration details D P.9
Alterations Code
Spec.
Alterations Code
Spec.
Head diameter change HC = 0.1mm increments E P + 1 ≦ HC < H, P ≧ 1.5
Precision single flat cutting P/2 ≦ VKC < H/2
VKC
HC
EPY － L EPH － L
EPHE － L
VKC － 0.02 0
Die Steel SKD61
b 1 (Range of guaranteed shaft diameter precision)
x 1
Head diameter change (precision) HCC = 0.1mm increments E P + 1 ≦ HCC < H−0.3, P ≧ 1.5 Head thickness change TC = 0.1mm increments E 2.0 ≦ TC < 4, P ≧ 1.5 (Dimension L remains unchanged) E 4−TC ≦ Lmax.−L
Pre–Hardened Die Steel SKD61
VWC Precision two flats cutting P/2 ≦ VWC < H/2
HCC
0 － 0.02
VWC
T = 4 0.02 R ≦ 0.5 （ P ≦ 2 R ≦ 0.3 ） L 0 －
About Designation Unit for Key Flat Cutting
Stainless Steel SUS440C
P － 0.02 － 0.01
0 －
Single flat cutting P/2 ≦ KC < H/2
P
0
KC
TC
0.005
＋ 0.02 0
＋ 0.05 0
TC
KC － 0.1 0
－ 0.02
（ L ＞ 200
）
L
4
4mm
Part Number
Head thickness T P Tolerance
＋ 0.1 0
Dowel hole boring E Applicable when H ≧ 4 X Combination with other than NHC/NHN/TMC/GVC not available Dowel hole + Spring pin driving E Applicable when H ≧ 4 X Combination with other than NHC/NHN/TMC/GVC not available Dowel hole + Dowel pin driving E Applicable when H ≧ 4 X Combination with other than NHC/NHN/TMC/GVC not available Numbering on the head Range of designation and Designation method: D P.10 E Available when H ≧ 2 X Combination with SKC not available Automatic sequential numbering on the head Range of designation and Designation method: D P.10 E Available when H ≧ 2 X Combination with SKC not available
JIS (6/8mm)
2
EPH–L EPY–L
0 –0.005
WKC Two flats cutting P/2 ≦ WKC < H/2
NC
M Material H Hardness
SKH51
0 － 0.1
4mm (T4)
58–60HRC Range of guaranteed shaft diameter precision/base material hardness (Details D P.7 )
WKC
10mm
4
–0.01 –0.02
EPHE–L
EPY–L is an overall quenched product. (No annealing on head)
(1)To align the key flat with the shaft diam- eter Unit of designation 0.05mm increments possible
Varied dimension flat cutting P/2 ≦ KAC < H/2 KBC = 0.1mm increments only KAC < KBC < H/2
P –0.01 –0.02 P 0 - 0.005 –
2
KAC KBC
NCW
－ 0.1 0
－ 0.1 0
Part Number
L 0.01mm increments
L 0.01mm increments
KAC
KBC
H T
Part Number
4
Type
P
H T
0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
P
Lmax.
Type
Lmin.
P 0
2
–0.002
Two flats (right angled) cutting P/2 ≦ RKC < H/2
0.3 0.4
60.00
RKC
NCS
RKC － 0.1 0
EPY–L ( P 0 –0.005 )
Standard Size Total Length Designation
100.00
4
20.00–60.00
2 4
0.5 0.6 0.7 0.8 0.9 1 1.1
150.00
3
217
DKC Three flats cutting P/2 ≦ DKC < H/2
NHC
200.00
Shaft Diameter Designation Shaft Diameter/ Total Length Designation
1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9
0 － 0.1
DKC
DKC
250.00
(2)To designate arbitrary key flat dimensions Unit of designation 0.1mm
200.00 300.00 250.00 200.00 300.00 250.00 200.00 350.00 250.00 200.00 350.00 250.00 200.00 350.00 250.00 200.00 350.00 250.00 200.00 350.00 250.00 350.00 250.00 350.00 250.00 350.00 250.00 350.00
4
Part Number – L
2
Order
Four flats cutting P/2 ≦ SKC < H/2
1 2 3
EPH–L5 – 210.00
SKC
NHN
2.1
－ 0.1 SKC 0
Tip Process
2.2 2.3 2.4
5
2.5 2.6
Engraving
0 ° KGC AG ° 120 ° 120 °
Two flats (angled) cutting P/2 ≦ KGC < H/2 AG = Designation 1° increments 0 < AG < 360
± 0.5
2.7 2.8 2.9
6
Quotation
Lapping on the tip face E Available when P ≧ 0.6 X EPY−L Not available
Delivery
3
KGC
TMC
Gas Vent
L
3.1
3.2 3.3 3.4
3.5 3.6
Gas vent machining S, B = 1mm increments E 2 ≦ S ≦ 10, S + 5 ≦ B ≦ 30 E Available when P ≧ 3
7
Three flats cutting at 120° P/2 ≦ KTC < H/2
120 °
EPH–L ( P 0 –0.005 )
3.7 3.8 3.9
KTC
GVC
4
0
S
KTC
－ 0.1
4.1
B
4.2 4.3 4.4
4.5 4.6
40.00
4
8
4.7 4.8 4.9
EPHE–L ( P –0.01 –0.02 )
5
5.1 5.5 5.6 6.1 6.5 6.6 6 7.1 7.5 7.6 8 8.1 7
9
10
250.00
11
350.00 250.00 350.00 250.00 350.00
8.5 8.6 9 9.5 9.6 10 9.1
14
15
10.1
10.5 10.6 11 11.1 11.5 11.6 12
250.00
17
13
14
350.00
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