P/L/N dimension designation type
Die Steel SKD61 Head thickness 4mm
STEPPED EJECTOR PINS –P/L/N DIMENSION DESIGNATION TYPE–
N
L
Part Number – L – P – N – (KC/WKC … etc.) EDSF 4 – 240.30 – P2.80 – N60 – NC
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
Head diameter change (precision) HCC = 0.1mm increments E D + 1 ≦ HCC ＜ H–0.3
EDSFS
EDSF
R ≦ 0.5
HCC
About Designation Unit for Key Flat Cutting
WKC Two flats cutting D/2 ≦ WKC ＜ H/2
Step R
（ D ≦ 2
R ≦ 0.3 ）
0 － 0.1
WKC
Head thickness change TC = 0.1mm increments E 2.0 ≦ TC ＜ 4 (Dimensions L and N remains unchanged) E 4–TC ≦ Lmax.–L
Varied width parallel flats cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1mm increments only KAC ＜ KBC ＜ H/2
KAC KBC
TC
－ 0.1 0
－ 0.1 0
TC
KAC
KBC
）
（ L ＞ 300
T =
0 －
－ 0.05 0
4
(1) To align the key flat with the retention diameter Unit of designation 0.05mm increments possible
4
T
0.02
－ 0.02 － 0.01
0 －
－ 5 0
（ L － N ）
P
P
N
＋ 0.1
0.005
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
2 0
RKC
＋ 0.02 0
＋ 0.05 0
Dowel hole boring E Available when H ≧ 4 X Combination with other than NHC/NHN not available
）
（ L ＞ 200
RKC － 0.1 0
L
L
4mm JIS (6/8mm) 10mm
NC
4
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
Head thickness
T P Tolerance
0 － 0.1
2
Dowel hole + Spring pin driving E Available when H ≧ 4 X Combination with other than NHC/NHN not available 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
Part Number
DKC
DKC
NCW
M Material SKD61 H Hardness 50–55HRC Range of guaranteed retention diameter (D) precision/ base material hardness/Step R (Details D P.97 )
0 –0.005
EDSFS
4
Four flats cutting D/2 ≦ SKC ＜ H/2
(2) To designate arbitrary key flat dimensions Unit of designation 0.1mm
P –0.01 –0.02 –0.01 –0.02
SKC
4mm (T4)
－ 0.1 SKC 0
–0.01 –0.02
EDSF
217
P 0
NHC
AG °
± 0.5
–0.005
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 AG = 1° increments 0 ＜ AG ＜ 360
0 °
KGC
P 0
Part Number
0.01mm increments
N 1mm increments
–0.002
KGC
H T
1 2 3
Type
D
L
P
NHN
120 ° 120 °
Tip Diameter Designation Total Length Designation
Three flats cutting at 120° D/2 ≦ KTC ＜ H/2
1.5
0.60– 1.40 0.80– 1.90 0.80– 2.40 1.00– 2.90 1.50– 3.40 1.50– 3.90 2.50– 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 6.90– 8.90 7.90– 9.90 8.90–11.90 9.90–12.90
3 4 5 6
－ 0.1 120 ° 0
N ≧ 15 and 15 ≦ (L–N) ≦ 150
KTC
2
40.00–200.00
KTC
2.5
Tip Diameter Total Length Designation Tip Diameter Total Length Designation
3
3.5
Tip Process
40.00–300.00
7
4
Engraving
4.5
EDSFS ( P 0 –0.005 )
8
5
Gas Vent
5.5
4
9
EDSF ( P –0.01
N ≧ 15 and 20 ≦ (L–N) ≦ 200
6
–0.02 )
6.5
10
7 8 9
40.00–500.00
11 14 15 17 18
10 12 13
Part Number – L – P – N EDSF 4 –240.30– P2.80 – N60
Delivery Quotation
Order
111
112
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