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Rivet Nut Too Mandrel Tip & Nosepiece Set M3, M4 & 20 Rivnuts Kit for NEXTACK NT600, NT700 & NT800, Rivnut Tool 607, 1442 & 1443B Swap Spare Parts & Rivnuts Nutserts Kit Accessories

  • Based on 82 reviews
Condition: New
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Availability: Only 6 left in stock, order soon!
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Arrives Sunday, May 3
Order within 3 hours and 49 minutes
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Size: M3, M4 mandrel & 20 rivnuts


Features

  • Compatibility: Fits NEXTACK NT600/NT700/NT800 and other brands models; NOT UNIVERSAL, so check mandrel appearance before purchase.
  • Kit Includes: 1 M3 (0.5mm pitch) + 1 M4 (0.7mm pitch) mandrel & nosepiece; 20 rivet nuts (10 of each size).
  • Material: Forged from high-quality chrome alloy steel for durability and long service life.
  • Easy Swap: Tool-free mandrel replacement; quick and effortless to switch between sizes.
  • Storage: Packed in a color-coded box with size labels for easy organization and identification.
  • Note: Mandrels are consumable; avoid uneven pressure or improper use. Message us with any questions anytime.

Material: Suitable for 607, 1442 & 1443B


Fastener Type: Rivet


Thread Size: M3 M4


Exterior Finish: Black Oxide


Color: Golden


Fastener Type: Rivet


Thread Size: M3 M4


Exterior Finish: Black Oxide


Color: Golden


Inside Thread Size: M3, M4


Thread Style: Right Hand


Thread Coverage: Partially Threaded


Grade Rating: Industrial


Size Name: M3, M4 mandrel & 20 rivnuts


Item Diameter: 3 Millimeters


Number of Pieces: 22


Brand: NEXTACK


Manufacturer: NEXTACK


Number Of Items: 1


Model: M34


Part Number: M34


Material Type: Suitable for 607, 1442 & 1443B


Metal Type: Alloy Steel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Love it.
Size: 6-32, 10-32 mandrel & 20 rivnuts
Very useful tool to own
Reviewed in the United States on December 25, 2025 by Manny

  • Fits perfectly and is well made
Size: 6-32, 10-32 mandrel & 20 rivnuts
My rivnut setter came with several mandrels. Sadly, there was no 10-23. I bought this set of mandrels which included 10-32 and 6-32. Exactly what I needed. I have a bin full of 10-32 rivnuts. Now I have a way to set them. The mandrels are well-made and arrived in good condition. They fit my Doyle rivnut setter perfectly. ... show more
Reviewed in the United States on October 19, 2023 by CalGeorge

  • they work
Size: M5, M6 mandrel & 20 rivnuts
they fit in my Astro Pneumatic tool and worked with stainless rivetnuts. only complaint is i wish they sold custom packages of the mandrels so i can get just the ones i need.
Reviewed in the United States on May 30, 2024 by zachary

  • HERRAMIENTA DE CALIDAD CORRECTA
Size: M5, M6 mandrel & 20 rivnuts
calidad correcta para el uso hobbista. La posibilidad de obtener mandriles de repuesto -que eventualmente se rompen o doblan-, me hizo definirme por esta marca.
Reviewed in the United States on February 2, 2026 by Armando Zubrzycki

  • KENNEDY RIVET NUT INSERT TOOL
This was a replacement die for one that was damaged, included in this order was another size that was also useful for my future use.
Reviewed in the United States on July 5, 2024 by DAN J.

  • Works with Doyle rivnut tool
Size: M3, M4 mandrel & 20 rivnuts
I bought this for my Doyle/harbor freight rivnut tool and it works perfectly with it, even fits in the storage box for the tool!
Reviewed in the United States on March 5, 2024 by JT

  • Exactly what I needed.
Size: 1/4-20 mandrel &20 rivnuts
I was being a idiot and broke my other arbor so I bought this replacement. Works good.
Reviewed in the United States on December 24, 2023 by tjjeepin

  • As described per info
Size: M3, M4 mandrel & 20 rivnuts
This was as described on listing, Good quality and happy with purchase
Reviewed in the United States on January 18, 2024 by JenJen

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