Moeller Retainer Slide 1


Moeller’s True-Set™ retainers are 100% interchangeable with all competing brands and furthermore meet or exceed all global OEM automotive standards.

Moeller Precision Tool’s exclusive and innovative, true one piece construction retainer was developed using intensive market research and user input. True-Set™ retainers are the only products manufactured from a through-hardened single piece of high quality alloy tool steel. The design eliminates stacking tolerance errors, allowing better punch positioning. The integrated design provides an end to the aggravation of lost plugs, or the separation of welded backing plates. True-Set™ retainers disperse the stamping force over the entire retainer surface, protecting die shoes.

Stringent quality practices are maintained throughout the manufacturing and inspection processes using the latest technologies and best lean manufacturing practices available.

True-Set Ball Lock

True-Set Advanced

True-Set AdvancedMetric:MRH-A


Heavy DutyInch:IRHMetric:MRH
Light DutyInch:IRLMetric:MRL

True-Set Economy Round

Economy RoundInch:IRRMetric:MRR

Mini True-Set

Mini True-Set               Metric:MRM

Square Type

Extra Heavy Duty

Extra Heavy Duty         Inch:IRX

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Ball Lock
Standard M2 Material

Ball Lock Standard M2 Material heavy duty

Heavy Duty Ball Lock True Strip

True Strip Heavy Duty Ball Lock

Light Duty Ball Lock

Ball Lock Punch Light Duty Solid

Shoulder Style and Light Duty Ball Lock True Strip

Shoulder Style and Light Duty Ball Lock

True-Fit Insertable Punch Retainers

True Set Style

Catalog PagesInch:IRIMetric:MRI
Geometry Files

Backing Plate Style

Backing Plate StyleInch:IRJMetric:MRJ
Geometry Files
MPT True-Fit Logo
MPT's newest ball-lock innovation!

  • The strongest and most economical insertable retainer
  • The industry's only true one-piece construction produced from through-hardened, shock-resistant tool steel
  • Adaptable booster spring and positive ball-lock retention system - resists shock and eliminates punch retention

  • True-FitTM Retainer Inserts are intended to be installed as slip-fit. Please refer to our Advanced Stamping Applications catalog pages (linked above) for hole dimensions and recommended tolerances.

    True-Set Shoulder

    For Round Punches

    For Round

    For Shaped Punches

    For Shaped

    For Round Punches with Symmetrical 3rd Dowel

    For Round Punches with
    Symmetrical 3rd Dowel

    For Shaped Punches with Symmetrical 3rd Dowel

    For Shaped Punches with Symmetrical 3rd DowelMetricMRQ

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    Shoulder Punch Blanks Selective Ejector

    Shoulder Style and Light Duty Ball Lock True Strip

    Shoulder Style and Light Duty Ball Lock

    DuraPunch Retainers

    For Round Punches

    For Round PunchesInch:XIRNMetric:XMRN

    For Shaped Punches

    For Shaped PunchesInch:XIROMetric:XMRO

    Related Products

    Dura Punch

    Dura Punch Solid 2

    Trumpet Head Retainers

    Trumpet Head

    For Round PunchesMetricXMRT

    Trumpet Head Retention Sleeve

    Retention SleeveMetricXMAQ

    Endmill for Trumpet Head Retainer


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    Trumpet Head

    Trumpet Head Blank 2




    Shoulder Style for Round Punches

    Shoulder Style for Round PunchesMetric:MRC

    Shoulder Style for Shaped Punches

    Shoulder Style for Shaped PunchesMetric:MRB
    Special Multi-Hole Retainers

    Special Multi Hole Retainers

    Moeller Precision Tool’s patented True-Set multi-hole retainer provides an innovative, low cost solution in building dies.

    • Manufactured from a single piece of high alloy tool steel, through hardened and ground for accuracy and long life
    • Unique design reduces die assembly time by eliminating backing plates and backing plugs, providing a 15-30% savings over backing plate styles.
    • Available in both light and heavy duty, inch and metric sizes.
    • Interchangeable with all competing brands.
    • 100% customer satisfaction guaranteed.

    Retainer Components

    A complete listing of Retainer Components and Accessories, including shim plates, are available in our Inch and Metric Catalogs:

    Have questions? Our team is happy to help! Contact Us.