---
product_id: 517064178
title: "PrimoChill RFB Rigid Tubing Finishing Bit - 8mm ID x 12mm OD"
price: "KSh41746"
currency: KES
in_stock: true
url: https://www.desertcart.co.ke/products/517064178-primochill-rfb-rigid-tubing-finishing-bit-8mm-id-x-12mm
store_origin: KE
region: Kenya
---

# PrimoChill RFB Rigid Tubing Finishing Bit - 8mm ID x 12mm OD

**Price:** KSh41746
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** PrimoChill RFB Rigid Tubing Finishing Bit - 8mm ID x 12mm OD
- **How much does it cost?** KSh41746 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/517064178-primochill-rfb-rigid-tubing-finishing-bit-8mm-id-x-12mm)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

PrimoChill RFB Rigid Tubing Finishing Bit - 8mm ID x 12mm OD

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | PETG, PMMA (Due to extremely quick dulling of the bit, Copper tubing is not recommended.) |
| Cutting Diameter | 8 Millimeters |
| Finish Type | Copper |
| Shank Type | Straight |
| Brand | PrimoChill |
| Item dimensions L x W x H | 0.01 x 0.01 inches |
| Tool Flute Type | Spiral |
| Surface Recommendation | Acrylic,Copper,Plastic |
| Number of Flutes | 3 |
| Unit Count | 1 Count |
| Manufacturer | PrimoChill |
| Item model number | RT12M-TOOL |
| Item Weight | 0.704 ounces |
| Item Dimensions  LxWxH | 0.01 x 0.01 inches |
| ASIN | B07MZB8PBN |
| Is Discontinued By Manufacturer | No |
| Date First Available | January 21, 2019 |

## Product Details

- **Material:** PETG, PMMA (Due to extremely quick dulling of the bit, Copper tubing is not recommended.)
- **Cutting Diameter:** 8 Millimeters
- **Finish Type:** Copper
- **Shank Type:** Straight
- **Brand:** PrimoChill

## Images

![PrimoChill RFB Rigid Tubing Finishing Bit - 8mm ID x 12mm OD - Image 1](https://m.media-amazon.com/images/I/31NGfeX7WkL.jpg)

## Questions & Answers

**Q: Can you put this bit in a standard screwdriver and rotate it by hand to trim the tube ends? Thanks!**
A: It's a 5/16 bit, so if you have a 5/16 bit driver, sure. But you won't get very far doing it by hand.  This bit works best under running water and 700-1000 rpm. If you do this by hand you may still be screwing in the year 3020. Or 2030. Either way, a long time from now.

**Q: Is the bit suppose to cut both inner and outer tube?**
A: Yes, it does a fantastic job. Make sure you keep your drill at proper angle. Use high speeds to take off access material and low speed for the fine tuning.

**Q: If i want to purchase a different bearing because of what i have read about bearing failures and being too small, what is the id of the bearing?**
A: The answer I do not know to that but I can tell you is you pop the shielding off of the side of it and grease  this bearing with a lil bit of silicon lube and maintain it like this say cleaning it in rubbing alcohol and re greasing it after say every 24 hrs of accrual use it will never fail. The reason Bearings fail is lack of lubricant that's it. I personally have this and the bearing is very free spinning and has no such problem.

**Q: Is it suppose to be a super tight fit into the tubing?**
A: Super Tight no.  Please contact our support team and they can assist in troubleshooting your issue.  supportATprimochill.com

## Frequently Bought Together

- PrimoChill RFB Rigid Tubing Finishing Bit - 8mm ID x 12mm OD
- CORSAIR Hydro X Series, XL8, Performance Coolant, 1L, Clear

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.ke/products/517064178-primochill-rfb-rigid-tubing-finishing-bit-8mm-id-x-12mm](https://www.desertcart.co.ke/products/517064178-primochill-rfb-rigid-tubing-finishing-bit-8mm-id-x-12mm)

---

*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-15*