01
Confirm the pierced feature
Provide the required perforation geometry, tolerance, work material, and component or tooling print.
Piercing & Hole Punches · ISO 8020
#573 Round
Piercing Punches
ISO 8020 Type B stepped piercing tooling for press tools used mainly for piercing and cutting perforations into sheet steel.
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Application note: published catalog specifications are shown below. Final dimensions, material availability, finish, and manufacturing configuration are confirmed during quotation.
Series#573
StandardISO 8020
TypeType B
Fitsm5 / j6
Direct Product Definition
An ISO 8020 Type B stepped round piercing punch.
The Universal Punch #573 is a precision round piercing punch identified on the catalog product sheet as ISO 8020 Type B. Its published application is press tooling used mainly for piercing and cutting perforations into sheet steel.
Unlike the straight Type A profile, the #573 drawing shows a reduced stepped section. The published data includes an m5 fit for d1, a j6 fit for d3, HSS and ASP30 material guidance, hardness ranges, and the required ordering dimensions.
Product Series#573
Tool TypeStepped Round Piercing Punch
Published StandardISO 8020 Type B
Shaft Fitd1 · m5
Step Fitd3 · j6
Application Selection
Use Type B when the tooling design requires the stepped geometry.
Selection should follow the component print and press-tool requirement rather than series number alone.
02
Confirm the stepped geometry
Specify d1, d2, d3, T, l1 and l2. The engineering drawing also shows the reduced-step length t.
03
Select material & finish
Choose between catalog-listed HSS and ASP30 based on the application, and identify any coating or special finish requirement during quotation.
Published Technical Data
#573 specifications
| Series | #573 |
|---|---|
| Catalog product name | Round Piercing Punches |
| Published standard | ISO 8020 Type B |
| Range of application | Press tools used mainly for piercing/cutting perforations into sheet steel. |
| Ordering dimensions | d1, d2, d3, T, l1 and l2. |
| Published fits | d1 shaft: m5. d3 step: j6. |
| Geometry | Cylindrical head with stepped/reduced shaft profile as shown on the dedicated #573 engineering drawing. |
| Drawing callouts | d2 −0.25 mm; T +0.25 mm; l1 +1 mm; l2 +1 mm; t +0.5 mm; 0.01 geometric controls to datum A; surface-finish callouts Rz 16, Rz 8 and Rz 2.5. |
| Material options | HSS (High Speed Steel) and ASP30 powder-metallurgy-manufactured High Speed Steel. |
| HSS hardness | Shaft HRC 62–64; head HRC 45–55. |
| ASP30 hardness | Shaft HRC 65–67; head HRC 48–55. |
| Finish | The catalog specifies hardened and annealed construction with precision grinding and a ground head surface. Final geometry and finish are confirmed against the current controlled drawing. |
| Coating note | Catalog states HSS piercing punches can be treated with a special surface coating on request. |
Geometry control: the dedicated #573 engineering drawing is the geometry reference used on this page. Final dimensions, finish, material availability and manufacturing requirements are confirmed against current Universal Punch documentation during quotation.
Catalog Fit / Tolerances
Published j6 step and m5 shaft tolerances.
The #573 catalog publishes j6 limits for nominal d3 step diameters and m5 limits for nominal d1 shaft diameters.
d3 step — j6
| Fit | Nominal d3 step diameter | Upper deviation | Lower deviation |
|---|---|---|---|
| j6 | 0.8–3 mm Ø | +0.004 mm | +0.002 mm |
| j6 | >3–6 mm Ø | +0.006 mm | +0.002 mm |
| j6 | >6–10 mm Ø | +0.007 mm | +0.002 mm |
| j6 | >10–18 mm Ø | +0.008 mm | +0.003 mm |
| j6 | >18–30 mm Ø | +0.009 mm | +0.004 mm |
| j6 | >30–31.9 mm Ø | +0.011 mm | +0.005 mm |
d1 shaft — m5
| Fit | Nominal d1 shaft diameter | Upper deviation | Lower deviation |
|---|---|---|---|
| m5 | 3 mm Ø | +0.006 mm | +0.002 mm |
| m5 | 4 / 5 / 6 mm Ø | +0.009 mm | +0.004 mm |
| m5 | 8 / 10 mm Ø | +0.012 mm | +0.006 mm |
| m5 | 13 / 16 mm Ø | +0.015 mm | +0.007 mm |
| m5 | 32 mm Ø | +0.020 mm | +0.009 mm |
Legacy table note: the scanned #573 catalog sheet contains one intermediate m5 deviation band (+0.017 / +0.008 mm) whose nominal-size header is blank in the source. That band is intentionally not assigned to a nominal size here; final d1 tolerance mapping is confirmed from the current controlled drawing during quotation.
Engineering Drawing Callouts
Additional values shown on the #573 drawing
| Drawing feature | Published callout |
|---|---|
| d2 head diameter | −0.25 mm |
| T head thickness | +0.25 mm |
| t reduced-step length | +0.5 mm |
| l1 length | +1 mm |
| l2 length | +1 mm |
| Geometric controls | 0.01 to datum A callouts are shown on the engineering drawing. |
| Surface-finish labels | Rz 16, Rz 8 and Rz 2.5 are shown on the engineering drawing. |
Material Selection
HSS and ASP30 are the catalog-listed options.
Material selection should follow work material, wear conditions, production volume, tool geometry, and current Universal Punch manufacturing guidance.
High Speed Steel
The catalog describes HSS for high-strength or difficult-to-work materials and notes abrasion resistance, tensile strength, and heat resistance.
- Shaft: HRC 62–64
- Head: HRC 45–55
- Special surface coating available on request per catalog note
Powder-metallurgy high-speed steel
The catalog identifies ASP30 as powder-metallurgy-manufactured high-speed steel and notes increased life expectancy in an application such as piercing stainless material.
- Shaft: HRC 65–67
- Head: HRC 48–55
- Evaluate when application wear demands justify the material choice
Manufacturer Configuration
Configure #573 from the print and production requirement.
Define the perforation
Provide the component print, pierced feature, tolerance, work material, and relevant production requirements.
Specify d1, d2 and d3
Provide the primary shaft, head and reduced-step diameters shown on the #573 engineering drawing.
Specify T, l1 and l2
Include the head thickness and published length dimensions. Confirm the reduced-step length t from the current drawing when applicable.
Select tool material
Identify HSS or ASP30, or request an application review when material selection is not yet established.
Define finish / coating
State any coating, finish, identification, or special manufacturing requirement as part of the RFQ.
Confirm quantity & documentation
Include order quantity, drawing revision, inspection requirements, and any documentation or packaging needs.
Piercing Punch Family
Choose the geometry required by the tooling design.
Universal Punch groups #570 through #577 as a family of round piercing and hole punches with different standards and geometries.
| Series | Catalog family designation | Website status |
|---|---|---|
| #570 | DIN 9861 Type D + DA | View page → |
| #571 | DIN 9861 Part 2 Type C | View page → |
| #572 | ISO 8020 Type A | View page → |
| #573 | ISO 8020 Type B | Current page |
| #574 | ISO 8020 Type E | Next page |
| #575 | ISO 8020 Type F | Planned |
| #576 | DIN 9844 Type A | Planned |
| #577 | DIN 9844 Type B | Planned |
Technical RFQ Checklist
Send the complete #573 application.
A drawing and production context allow Universal Punch to confirm geometry, material, tolerances, finish, and order requirements before manufacture.
- Component / tooling drawing
- Drawing revision
- d1 shaft diameter
- d2 head diameter
- d3 step diameter
- T head thickness
- l1 and l2 lengths
- Work material & hardness
- HSS or ASP30 preference
- Coating / finish requirement
- Order quantity
- Inspection / documentation needs
Technical FAQ
#573 questions and direct answers
What is the Universal Punch #573?
The #573 is an ISO 8020 Type B stepped round piercing punch for press tools used mainly for piercing and cutting perforations into sheet steel.
What dimensions are specified when ordering #573?
The catalog ordering line identifies d1, d2, d3, T, l1 and l2. The engineering drawing also shows the reduced-step length t.
What fits are published for #573?
The catalog identifies the nominal d1 shaft diameter with an m5 fit and the nominal d3 step diameter with a j6 fit.
What materials are listed for #573?
The catalog lists High Speed Steel (HSS) and ASP30 powder-metallurgy-manufactured High Speed Steel.
What hardness is published for #573?
For HSS, the catalog lists shaft hardness of HRC 62–64 and head hardness of HRC 45–55. For ASP30, it lists shaft hardness of HRC 65–67 and head hardness of HRC 48–55.
Can HSS #573 punches receive a coating?
Yes. The catalog notes that HSS piercing punches can be treated with a special surface coating on request. Current coating selection should be confirmed during quotation.
What should I submit for a #573 quote?
Send the drawing, d1, d2, d3, T, l1 and l2 requirements, work material, punch material preference, quantity, and any coating, inspection, or documentation requirements.
Configure #573 from the actual tooling requirement.
Send Universal Punch the drawing, dimensions, work material, punch material preference, quantity, and any coating or documentation requirements so the current #573 configuration can be reviewed before quotation.