01
Confirm the pierced feature
Provide the required perforation geometry, tolerance, sheet material and component or tooling print.
Piercing & Hole Punches · ISO 8020
#574 Round
Piercing Punches
ISO 8020 Type E piercing tooling for sheet-steel perforation applications, with an integrated ejector system for rapid ejection of punch blanks.
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Application note: published catalog specifications are shown below. Final dimensions, spring/ejector configuration, material availability, finish and manufacturing requirements are confirmed during quotation.
Series#574
StandardISO 8020
TypeType E
FeatureSpring-Loaded Ejector
Direct Product Definition
An ISO 8020 Type E piercing punch built for rapid blank ejection.
The Universal Punch #574 is identified on the catalog product sheet as an ISO 8020 Type E round piercing punch for press tools used mainly in piercing and cutting perforations into sheet steel.
The distinguishing feature on the Type E page is the ejection system. The catalog states that the punch is especially suitable for rapid ejection of punch blanks and includes special threaded compression springs, a setscrew and an ejector.
Product Series#574
Tool TypeRound Piercing Punch with Ejector
Published StandardISO 8020 Type E
Shaft Fitd1 · m5
Published MaterialHSS
Application Selection
Start with the perforation requirement and the need for rapid blank ejection.
Select #574 from the component print, press-tool design and ejection requirement rather than from series number alone.
02
Confirm the ejection requirement
The catalog identifies Type E as especially suitable for rapid ejection of punch blanks and shows the internal spring/ejector assembly in section.
03
Confirm dimensions & finish
Specify d1, d2, T, l1 and l2, plus quantity and any special surface coating, inspection or documentation requirements.
Published Technical Data
#574 specifications
| Series | #574 |
|---|---|
| Tool type | Round piercing punch with internal ejector system. |
| Published standard | ISO 8020 Type E. |
| Range of application | Press tools used mainly for piercing/cutting perforations into sheet steel; especially suitable for rapid ejection of punch blanks. |
| Ordering dimensions | d1, d2, T, l1 and l2. |
| Published shaft fit | m5 for nominal diameter d1. |
| Drawing callouts | d2 −0.25 mm; T +0.25 mm; l1 +1 mm; l2 +1 mm; perpendicularity 0.01 to datum A; surface-finish callouts Rz 16, Rz 8 and Rz 2.5 are shown on the drawing. |
| Published material | HSS — High Speed Steel. |
| Hardness | Shaft HRC 62–64; head HRC 45–55. |
| Finish | Hardened, annealed, cylinder head precision ground; shaft plunge-cut ground over the whole length including the underneath part of the head; head surface ground. |
| Ejection system | Special threaded compression springs, setscrew and ejector. The catalog states that spring tension of the draw-off pin is adjustable at the setscrew on the head. |
| Non-specified tolerances | The catalog directs non-specified tolerances to ISO2768-m. |
| Coating | Special surface coating is available for HSS piercing punches on request. |
Configuration control: the dedicated #574 engineering drawing and published table are presented here as catalog data. Final dimensions, ejection-system details, finish and manufacturing requirements should be confirmed against current Universal Punch documentation during quotation.
Engineering Tolerances
Published m5 shaft tolerances for d1.
The #574 catalog table publishes the following m5 deviations for the nominal d1 shaft sizes shown on the Type E sheet.
| Fit | Nominal d1 Size(s) | Upper Deviation | Lower Deviation |
|---|---|---|---|
| m5 | 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 | 20 / 25 mm Ø | +0.017 mm | +0.008 mm |
| m5 | 32 mm Ø | +0.020 mm | +0.009 mm |
Drawing Callouts
Additional values shown on the #574 drawing
| d2 head diameter | −0.25 mm callout shown on the drawing. |
|---|---|
| T head thickness | +0.25 mm callout shown on the drawing. |
| l1 | +1 mm callout shown on the drawing. |
| l2 | +1 mm callout shown on the drawing. |
| Perpendicularity | 0.01 relative to datum A is shown on the drawing. |
| Surface finish | Rz 16, Rz 8 and Rz 2.5 callouts are shown on the engineering drawing. |
Catalog note: the #574 sheet states that non-specified tolerances are in accordance with ISO2768-m. Final requirements should be confirmed from the current controlled drawing before manufacture.
Material & Ejection System
HSS construction with an adjustable spring/ejector arrangement.
High Speed Steel
The #574 catalog sheet lists High Speed Steel for the Type E configuration.
- Shaft hardness: HRC 62–64
- Head hardness: HRC 45–55
- Catalog guidance describes HSS for high-strength or difficult-to-work materials.
- Special surface coating is available on request.
Compression spring, setscrew & ejector
The Type E product sheet identifies the ejection mechanism as part of the standard configuration described in the catalog.
- Special threaded compression springs
- Setscrew
- Ejector / draw-off pin
- Spring tension adjustable at the setscrew on the head
Manufacturer Configuration
Configure #574 from the print, ejection requirement and production context.
Define the perforation
Provide the component print, pierced feature, tolerance, sheet material and relevant production requirements.
Specify d1 and d2
Provide the shaft and head diameters shown on the Type E drawing.
Specify T, l1 and l2
Include the published head-thickness and length dimensions identified in the catalog ordering line.
Confirm ejection needs
Identify any application requirements that affect the spring, ejector, draw-off pin or blank-ejection behavior.
Define finish / coating
Identify any requested surface coating, finish or inspection requirements.
Confirm quantity & documentation
Include quantity, drawing revision, inspection requirements, documentation and packaging needs.
Piercing Punch Family
Compare #574 with the surrounding Universal Punch piercing series.
| Series | Published Family / Standard | Status |
|---|---|---|
| #570 | DIN 9861 Type D + DA | Related product |
| #571 | DIN 9861 Type C + CA family | Related product |
| #572 | ISO 8020 Type A | Related product |
| #573 | ISO 8020 Type B | Related product |
| #574 | ISO 8020 Type E | Current 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 #574 application.
A drawing and production context allow Universal Punch to confirm geometry, the ejector arrangement, material, tolerances, finish and order requirements before manufacture.
- Component / tooling drawing
- d1 shaft diameter
- d2 head diameter
- T head thickness
- l1 and l2 lengths
- Sheet / work material
- Ejection / spring requirements
- Quantity
- Coating / finish requirements
- Drawing revision
- Inspection requirements
- Documentation / packaging requirements
Technical FAQ
#574 questions and direct answers
What is the Universal Punch #574?
The #574 is an ISO 8020 Type E round piercing punch used mainly for piercing and cutting perforations into sheet steel. The catalog notes that it is especially suitable for rapid ejection of punch blanks.
What makes Type E different on this catalog page?
The #574 Type E sheet shows an internal ejection system and states that the punch comes with special threaded compression springs, a setscrew and an ejector.
Can the spring tension be adjusted?
Yes. The catalog states that spring tension of the draw-off pin is adjustable at the setscrew on the head.
What dimensions are specified when ordering #574?
The catalog ordering line identifies d1, d2, T, l1 and l2.
What material and hardness are published for #574?
The #574 sheet lists HSS. Published hardness is HRC 62–64 for the shaft and HRC 45–55 for the head.
What fit is published for the shaft?
The #574 catalog table identifies the nominal d1 shaft diameter with an m5 fit and publishes deviations for the listed 5 mm through 32 mm sizes.
Can #574 HSS 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.
Universal Punch Application Review
Configure #574 around the actual piercing and ejection requirement.
Send Universal Punch the print, d1, d2, T, l1 and l2 dimensions, sheet material, ejection requirements, quantity, and any coating or documentation requirements so the current #574 configuration can be reviewed before quotation.