High Speed Steel SKH51 D 0 –0.005 /D –0.01 –0.02
STRAIGHT CENTER PINS WITH TIP PROCESS –SHAFT DIAMETER (D) SELECTION TYPE–
Head thickness 4 mm
Head thickness JIS
Head thickness (T)
T Tolerance D
Part Number
L 0.01 mm increments
Applicable ejector sleeve hole diameter tolerance
Type
D (P) –0.01 –0.02 D (P) 0 4 mm JIS (6/8 mm) –0.005 High Speed Steel SKH51 Die Steel SKD61 + Nitriding Total Length Designation Shaft Diameter(P) 0
Shape (Tip size)
Type
H T H T
Shape D
Head thickness 4 mm Head thickness JIS
4 mm (T4)
1 50.00 – 200.00
CPH
–5L
C … 0.1 mm increments
+ 0.005 0 Details D P.219
3 4 5 6 7
Shape C
1.5
0 –0.005
2
50.00 – 250.00
–
– –
K … 1 ° increments
6/8 mm (JIS)
Shape G
CPHJ –5L
2.5
3
S … 0.1 mm increments K … 1 ° increments
Shape T
3.5
C G T R B
50.00 – 300.00
4 mm (T4)
CPHE –5L
4
+ 0.01
8
0 or H7 Details D P.219
4.5
–0.01 –0.02
CPH –5L CPHE–5L
8
R … 0.1 mm increments
5
4
Shape R
Range of guaranteed shaft diameter precision (Details D P.221 ) Range of guaranteed base material hardness (Details D P.223 )
M Material SKH51
6/8 mm (JIS)
9
CPHJE–5L
5.5
6
H hardness 58 to 60HRC
9
6
10 11 13 14 15 17
Default R (SR) = D 2 (R … 0.1 mm increments possible)
CPHJ –5L CPHJE–5L
Shape B
6.5 7
10 11 14 15 17
Shape (Tip shape)
50.00 – 350.00
8 9
Shape C (C chamfered)
R ≦ 0.5 （ D ≦ 2
R ≦ 0.3 ）
8
± 0.05
C
Refer to the working limits shown in the drawing
10 12
Total Length Designation
45 ° ± 30 ′
C … 0.1 mm increments 0.1 ≦ C ≦ D–0.2 2
Part Number – L – Tip size (C/S/K/R) CPH –5LC5 – 100.00 – C1.0 CPHJ–5LT5 – 100.00 – S2.0–K30
Delivery Quotation
Order
T － 0.02 0
＋ 0.02 0
）
＋ 0.05
（ L ＞ 200 L
L
0
– (KC/WKC … etc.)
Part Number –
–
L
Tip size (C/S/K/R)
Shape G (Cone)
R ≦ 0.5 （ D ≦ 2
R ≦ 0.3 ）
Alterations
– HC7.0 – HC7.0
CPH –5LB6 – 100.00 – CPHJ–5LT5 – 100.00 –
R4.0
Alteration details D P.276
K ° ± 30 ′
S2.0–K30
Alterations Code
Spec.
Alterations Code
Spec.
K … 1° increments 45 ≦ K ＜ 90
Head diameter change HC = 0.1 mm increments E D ≦ HC ＜ H, D ≧ 1.5
Precision single flat cutting D/2 ≦ VKC ＜ H/2
VKC
HC
VKC － 0.02 0
0 － 0.02 T
E In relation to the diameter tolerance, alteration may create a straight piece with a little diameter difference.
0 ＋ 0.05
L
Head diameter change (precision) HCC = 0.1 mm increments E D + 1 ≦ HCC < H–0.3, D ≧ 1.5 Head thickness change TC = 0.1 mm increments E T/2 ≦ TC < T, D ≧ 1.5 (Dimension L remains unchanged) E T–TC ≦ Lmax.–L
VWC Precision two flats cutting D/2 ≦ VWC ＜ H/2
HCC
0 － 0.02
Shape T (Tapered)
R ≦ 0.5 （ D ≦ 2
R ≦ 0.3 ）
VWC
S ± 0.05
S … 0.1 mm increments (L–S) ≧ 45 and 0.1 ≦ S ≦ D×2 and D 2 –StanK ≧ 0.1
K … 1° increments 1 ≦ K ≦ 45
About Designation Unit for Key Flat Cutting
K ° ± 30 ′
Single flat cutting D/2 ≦ KC ＜ H/2
0
KC
TC
－ 0.02 TC
KC － 0.1 0
T
0 － 0.02
T
＋ 0.1
Dowel hole boring E Available when H ≧ 4 X C ombination with other than NHC / NHN not available Dowel hole boring + Spring pin driving E Available when H ≧ 4 X C ombination with other than NHC / NHN not available
d 0
＋ 0.02
＋ 0.05
T d ℓ 4 2 3 6 3 5 8
）
（ L ＞ 200 L
WKC Two flats cutting D/2 ≦ WKC ＜ H/2
L
0
0
NC
(1) When specifying key flat cutting according to shaft diameter Unit of designation 0.05 mm increments possible
0 － 0.1
WKC
T
Shape R (R chamfered)
R ≦ 0.5 （ D ≦ 2
R ≦ 0.3 ）
R ± 0.1
R … 0.1 mm increments 0.2 ≦ R ≦ D–0.2 2
Varied dimension flat cutting D/2 ≦ KAC ＜ H/2 KBC = 0.1 mm increments only KAC ＜ KBC ＜ H/2
d
T d ℓ 1 4 2 5 6 3 8
KAC KBC
NCW
－ 0.1 0
KBC － 0.1 0
KAC
T
Numbering at the back part of the head Range of designation and Designation method: D P.276 E Available when H ≧ 2
0 － 0.02 T
Two flats (right angled) cutting D/2 ≦ RKC ＜ H/2
217
RKC
NHC
RKC － 0.1 0
＋ 0.02
＋ 0.05
）
（ L ＞ 200 L
L
0
0
(2) When designating arbitrary key flat dimensions Unit of designation 0.1 mm
A utomatic sequential numbering at the back of the head Range of designation and Designation method: D P.276 E Available when H ≧ 2
Shape B (Spherical)
DKC Three flats cutting D/2 ≦ DKC ＜ H/2
（ SR ） ± 0.1 R
1
2
3
R ≦ 0.5 （ D ≦ 2
R ≦ 0.3 ）
NHN
0 － 0.1
• Default R (SR) = D 2 * SR may be designated within D 2 ＜ R ≦ 2 × D R … 0.1 mm increments possible
DKC
DKC
AG °
± 0.5
Two flats (angled) cutting D/2 ≦ KGC ＜ H/2 AG = 1° increments 0 ＜ AG ＜ 360
0 °
KGC
KGC
0 － 0.02 T
120 ° 120 °
0 ＋ 0.05
－ 0.1 120 ° 0
KTC Three flats cutting at 120°. D/2 ≦ KTC ＜ H/2
L
KTC
277
278
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