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PrimoChill rigid finishing bit for 3/8in ID 1/2in OD tubing, metal drill-bit form with sealed bearings

PrimoChill

PrimoChill Rigid Finishing Bit 3/8in ID 1/2in OD

SKU CH-2N21-23NXV

Drill-bit tool reams, deburrs and trims 3/8 in. ID × 1/2 in. OD rigid tubing for clean, precise water-cooling joints

  • Product typeCPU Block

Model 3/8in. ID X 1/2in. OD

  • Reams, deburrs and trims rigid tubing in one tool
  • Works with 3/8 in. ID × 1/2 in. OD PETG or PMMA tubing
  • Fits standard drill chucks for powered operation
  • Sealed bearings give scuff-free spinning finish
  • Rough-cut then fine-tune tube length at higher RPM

Rigid Finishing Bit for 3/8in ID Tubing

The PrimoChill Rigid Finishing Bit is a drill-bit tool made for reaming, deburring and trimming hardline water-cooling tubing. It fits standard drill chucks and is sized for tubing with a 3/8in inner diameter and 1/2in outer diameter. The bit uses sealed bearings that spin without scuffing the tube surface. Builders who assemble custom loops with rigid tubing use it to create clean, precise ends.

Behaviour under sustained use

The bit is designed for mid-to-low RPM finishing passes that smooth tube ends without effort, while higher RPMs let you trim the tube to exact length. Sealed bearings maintain consistent, scuff-free rotation during extended sessions. The manufacturer warns that copper tubing dulls the cutting edges extremely quickly, so the tool is intended for PETG and PMMA only. Practising on scrap material first is advised to gauge material-removal speed.

Compatibility: 3/8in ID x 1/2in OD

This finishing bit works exclusively with rigid tubing measuring 3/8in inner diameter by 1/2in outer diameter. It is not suitable for other tubing sizes or for copper tubing due to rapid wear. The package contains one assembled Rigid Finishing Bit ready for use in a standard drill.

How it compares

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Price $31.99
Pricier than about 72% of the 609 comparable items (median $15.99).

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Specifications

Product
Product typeCPU Block

Other versions of this model

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Questions about this item

Does the finishing bit generate noticeable heat or vibration when run continuously in a drill?

The bit uses sealed bearings for scuff-free spinning, allowing smooth operation at mid to low RPM without excessive heat or vibration during extended use.

What drill or tool is required to use this finishing bit?

It is designed to fit standard drills, so any common drill with a compatible chuck will work.

Will this bit work correctly with the 1/2 in. OD rigid tubing I already have?

Yes, it is sized for 3/8 in. ID by 1/2 in. OD tubing and is compatible with PETG and PMMA materials.

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