We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

PrimoChill

PrimoChill RFB Rigid Finishing Bit 10mm ID 14mm OD

SKU CH-1WWN-03PQ3

Finishing bit reams, deburrs and trims 10 mm ID by 14 mm OD rigid tubing using a standard drill

  • TypeCPU Block
  • Perfect fit for 10mm ID 14mm OD tubing
  • Smooth ream deburr and trim in one tool
  • Sealed bearings prevent scuff marks while spinning
  • Works with standard drill for easy operation
  • Cuts PETG and PMMA cleanly at mid to low RPM

Precision Tooling for Hardline Builds

The PrimoChill RFB Rigid Finishing Bit is a dedicated drill-bit accessory for custom watercooling loops. It reams, deburrs and trims rigid tubing to a clean, professional finish. The tool is assembled and ready to use in any standard drill chuck, saving time compared with manual reamers.

Ideal for PETG and PMMA; Avoid Copper

Builders working with 10mm ID by 14mm OD PETG or acrylic tubing will appreciate the sealed bearings that prevent scuffing while spinning. The bit removes material quickly at higher speeds for length trimming, then smooths ends at lower RPM. Copper tubing is not recommended because it dulls the cutting edges almost immediately.

Single Deciding Specification

Compatibility is limited to rigid tubing with a 10mm inner diameter and a 14mm outer diameter. If your loop uses a different tube size, this bit will not fit and cannot produce the required finish.

Highlights

  • Perfect fit for 10mm ID 14mm OD tubing
  • Smooth ream deburr and trim in one tool
  • Sealed bearings prevent scuff marks while spinning
  • Works with standard drill for easy operation
  • Cuts PETG and PMMA cleanly at mid to low RPM

Specifications

TypeCPU Block

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

Will the 10 mm ID RFB fit the 14 mm OD rigid tube I already own?

The bit is sized for 10 mm inner and 14 mm outer diameter rigid tubing, matching those exact dimensions.

How can I verify the sealed bearings are spinning freely after I install the bit in my drill?

Run the drill at low speed; the bit should rotate smoothly without wobble or audible grinding.

Does the package include spare bearings or a storage case, or must I buy them separately?

The box contains one assembled Rigid Finishing Bit only; no extra bearings or case are included.

New to this? Which coin should you pay with — what to check, what it costs to pay, and what is never asked for.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.