BLOCK PUNCHES LIST -GUIDE -

Shank type Material Standard TiCN
coating
WPC®
treatment
HW
coating
Type Type Type Type
Fixed
size
type
Normal
Equivalent
to SKD11
HP□□   W-HP□□  
SKH51 HSP□□ H-HSP□□ W-HSP□□ HW-HSP□□
Powdered
high-
speed
steel
PHP□□ H-PHP□□ W-PHP□□ HW-PHP□□
Tapped
Equivalent
to SKD11
HM□□   W-HM□□  
SKH51 HSM□□ H-HSM□□ W-HSM□□ HW-HSM□□
Powdered
high-
speed
steel
PHM□□ H-PHM□□ W-PHM□□ HW-PHM□□
Jector Tapped
Equivalent
to SKD11
HJM□□   W-HJM□□  
SKH51 HSJM□□ H-HSJM□□ W-HSJM□□ HW-HSJM□□
Powdered
high-
speed
steel
PHJM□□ H-PHJM□□ W-PHJM□□ HW-PHJM□□
With key groove
Equivalent
to SKD11
HK□□   W-HK□□  
SKH51 HSK□□ H-HSK□□ W-HSK□□ HW-HSK□□
Powdered
high-
speed
steel
PHK□□ H-PHK□□ W-PHK□□ HW-PHK□□
Jector With key groove
Equivalent
to SKD11
HJK□□   W-HJK□□  
SKH51 HSJK□□ H-HSJK□□ W-HSJK□□ HW-HSJK□□
Powdered
high-
speed
steel
PHJK□□ H-PHJK□□ W-PHJK□□ HW-PHJK□□
Single flange type
Equivalent
to SKD11
HF□□   W-HF□□  
SKH51 HSF□□ H-HSF□□ W-HSF□□ HW-HSF□□
Powdered
high-
speed
steel
PHF□□ H-PHF□□ W-PHF□□ HW-PHF□□
Jector Single flange
Equivalent
to SKD11
HJF□□   W-HJF□□  
SKH51 HSJF□□ H-HSJF□□ W-HSJF□□ HW-HSJF□□
Powdered
high-
speed
steel
PHJF□□ H-PHJF□□ W-PHJF□□ HW-PHJF□□
Double flanges
Equivalent
to SKD11
HW□□   W-HW□□  
SKH51 HSW□□ H-HSW□□ W-HSW□□ HW-HSW□□
Powdered
high-
speed
steel
PHW□□ H-PHW□□ W-PHW□□ HW-PHW□□
Jector Double flanges
Equivalent
to SKD11
HJW□□   W-HJW□□  
SKH51 HSJW□□ H-HSJW□□ W-HSJW□□ HW-HSJW□□
Powdered
high-
speed
steel
PHJW□□ H-PHJW□□ W-PHJW□□ HW-PHJW□□
Flange thickness 10mm type Single flange
Equivalent
to SKD11
AHF□□   W-AHF□□  
SKH51 AHSF□□ H-AHSF□□ W-AHSF□□ HW-AHSF□□
Powdered
high-
speed
steel
APHF□□ H-APHF□□ W-APHF□□ HW-APHF□□
Flange thickness 10mm type Double flanges
Equivalent
to SKD11
AHW□□   W-AHW□□  
SKH51 AHSW□□ H-AHSW□□ W-AHSW□□ HW-AHSW□□
Powdered
high-
speed
steel
APHW□□ H-APHW□□ W-APHW□□ HW-APHW□□
Flange stopper type
Equivalent
to SKD11
HT□□      
SKH51 HST□□      
Powdered
high-
speed
steel
PHT□□      
Configurable
size
type
Normal
Equivalent
to SKD11
FHP□      
SKH51 FHSP□ H-FHSP□
Powdered
high-
speed
steel
FPHP□ H-FPHP□
Tapped
Equivalent
to SKD11
FHM□      
SKH51 FHSM□ H-FHSM□
Powdered
high-
speed
steel
FPHM□ H-FPHM□
With key groove
Equivalent
to SKD11
FHK□      
SKH51 FHSK□ H-FHSK□
Powdered
high-
speed
steel
FPHK□ H-FPHK□
Single flange type
Equivalent
to SKD11
FHF□      
SKH51 FHSF□ H-FHSF□
Powdered
high-
speed
steel
FPHF□ H-FPHF□
Double flanges
Equivalent
to SKD11
FHW□      
SKH51 FHSW□ H-FHSW□
Powdered
high-
speed
steel
FPHW□ H-FPHW□
Straight
type
Straight type
Equivalent
to SKD11
HPC□      
SKH51 HSPC□ H-HSPC□
Powdered
high-
speed
steel
PHPC□ H-PHPC□
Straight Tapped
Equivalent
to SKD11
HMC□      
SKH51 HSMC□ H-HSMC□
Powdered
high-
speed
steel
PHMC□ H-PHMC□
Jector straight Tapped
Equivalent
to SKD11
HJMC□      
SKH51 HSJMC□ H-HSJMC□
Powdered
high-
speed
steel
PHJMC□ H-PHJMC□
Straight With key groove
Equivalent
to SKD11
HKC□      
SKH51 HSKC□ H-HSKC□
Powdered
high-
speed
steel
PHKC□ H-PHKC□
Jector straight With key groove
Equivalent
to SKD11
HJKC□      
SKH51 HSJKC□ H-HSJKC□
Powdered
high-
speed
steel
PHJKC□ H-PHJKC□
Straight
type
Straight Single flange
Equivalent
to SKD11
HFC□      
SKH51 HSFC□
Powdered
high-
speed
steel
PHFC□
Jector straight Single flange
Equivalent
to SKD11
HJFC□      
SKH51 HSJFC□
Powdered
high-
speed
steel
PHJFC□
Straight Double flanges
Equivalent
to SKD11
HWC□      
SKH51 HSWC□
Powdered
high-
speed
steel
PHWC□
Jector straight Double flanges
Equivalent
to SKD11
HJWC□      
SKH51 HSJWC□
Powdered
high-
speed
steel
PHJWC□
Short straight Tapped
Equivalent
to SKD11
HMCDS      
Powdered
high-
speed
steel
PHMCDS
Short straight Single flange
Equivalent
to SKD11
HFCDS      
Powdered
high-
speed
steel
PHFCDS
Short straight Double flanges
Equivalent
to SKD11
HWCDS      
Powdered
high-
speed
steel
PHWCDS
Punch
blanks
Normal
Equivalent
to SKD11
HPB(H6~30)      
SKH51 HPB(H3~5)
Powdered
high-
speed
steel
PHPB
Tapped
Equivalent
to SKD11
HMB(H6~30)      
SKH51 HMB(H5)
Powdered
high-
speed
steel
PHMB
Jector Tapped
Equivalent
to SKD11
HJMB      
 
With key groove
Equivalent
to SKD11
HKB(H6~30)      
SKH51 HKB(H3~5)
Powdered
high-
speed
steel
PHKB
Jector With key groove
Equivalent
to SKD11
HJKB      
Single flange type
Equivalent
to SKD11
HFB(H6~30)      
SKH51 HFB(H3~5)
Powdered
high-
speed
steel
PHFB
Jector Single flange
Equivalent
to SKD11
HJFB      
Double flanges
Equivalent
to SKD11
HWB(H6~30)      
SKH51 HWB(H3~5)
Powdered
high-
speed
steel
PHWB
Jector Double flanges
Equivalent
to SKD11
HJWB      
Short Tapped
Equivalent
to SKD11
HMBS      
Powdered
high-
speed
steel
PHMBS
Short Single flange
Equivalent
to SKD11
HFBS      
Powdered
high-
speed
steel
PHFBS
Short Double flanges
Equivalent
to SKD11
HWBS      
Powdered
high-
speed
steel
PHWBS

Improved shape precision of block punches

The shape precision standards for block bunches were modified in 2007 in order to meet the needs of higher precision dies.In addition, several types of shape tolerance standards are available to suit different customer applications. (These are selected by alterations.)

1)Shape precision standards
Item Standard
Perpendicularity a≤0.005
Parallelism b≤0.005
Warpage c≤0.005
Bending of tip d≤0.01
Perpendicularity of top face e≤0.005

2)Variations of shape tolerances(alterations)
Code None VKC VKM VHM VHZ
Shape tolerance V·H V·H V·H V·H V·H±0.005

Jector punch spring change(Alteration JVC)

Spring reinforced jector punches have been added to the block punch product lineup.
The spring constant is twice that of a conventional jector punch, providing improved scrap removal effects.

Applicable products: All jector punches
Can be used with L≥60.
Cannot be used for H6(With a jector straight punch, cannot be used for W≤6.00.)

How to order
The tip position can be set freely within the range of shank V and H.

Key groove position and flange position can be set freely.(For types with flange thickness of 10mm, the positions are fixed.)

With key groove Single flange·flange stopper Double flanges
  • By default, the key groove, head, and flange are located at the standard positions(0). The positions can be changed at no charge.

Corner radius of square shape type

  • By default, the corners are rounded to 0.2 or less. If R0 is needed, specify R=0.
    R=0 cannot be selected with WPC treatment or HW coating types.

Example of selection specifications on the product pages

Material
Hardness
Catalogue No.
Type Tip shape B
Tip length
(H3~5)
SKH51
61~64HRC
(H6~30)
Equivalent
to SKD11
60~63HRC
HP S

L

Tip length(B)
L>S
SKH51
61~64HRC
HSP
(H6~30)
Powdered
high-speed
steel
64~67HRC
PHP

Even when P=V and W=H, the tip tolerance is determined by the P and W tolerances.
(Example)

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