---
product_id: 136244978
title: "50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each)"
brand: "wayintop"
price: "KSh5677"
currency: KES
in_stock: true
reviews_count: 8
category: "Wayin Top"
url: https://www.desertcart.co.ke/products/136244978-50pcs-pcb-drill-bits-set-spiral-flute-carbide-0-3mm
store_origin: KE
region: Kenya
---

# 0.3mm-1.2mm size range Tungsten steel durability 50 precision drill bits 50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each)

**Brand:** wayintop
**Price:** KSh5677
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Like a Pro, Finish Like a Boss!

## Quick Answers

- **What is this?** 50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each) by wayintop
- **How much does it cost?** KSh5677 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/136244978-50pcs-pcb-drill-bits-set-spiral-flute-carbide-0-3mm)

## Best For

- wayintop enthusiasts

## Why This Product

- Trusted wayintop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from tungsten steel for unmatched wear resistance and bending strength
- • **Compact & Ready to Go:** High-quality plastic case for easy storage and on-the-go project readiness
- • **Clean & Efficient Cuts:** Sharp spiral flutes ensure smooth chip removal and glitch-free drilling
- • **Multi-Material Mastery:** Perfect for PCBs, jewelry, CNC engraving, and even stone or metal surfaces
- • **Precision in Every Drill:** 10 sizes from 0.3mm to 1.2mm, 5 pieces each for flawless versatility

## Overview

This 50-piece PCB drill bit set features high-quality tungsten steel bits ranging from 0.3mm to 1.2mm in diameter, designed for precision drilling across circuit boards, jewelry, CNC engraving, and more. With sharp spiral flutes and a durable build, it delivers clean, efficient cuts while the compact plastic case ensures easy portability and protection.

## Description

Product description WayinTop PCB Drill Bits Set Specifications Material: Tungsten Steel Quantity: 50pcs, 5pcs each size. Item Type: 0.3+0.4+0.5+0.6+0.7+0.8+0.9+1.0+1.1+1.2mm Package Included 5 x 0.3mm PCB Drill Bits 5 x 0.4mm PCB Drill Bits 5 x 0.5mm PCB Drill Bits 5 x 0.6mm PCB Drill Bits 5 x 0.7mm PCB Drill Bits 5 x 0.8mm PCB Drill Bits 5 x 0.9mm PCB Drill Bits 5 x 1.0mm PCB Drill Bits 5 x 1.1mm PCB Drill Bits 5 x 1.2mm PCB Drill Bits High Quality PCB Drill Bits Set Small chip removal resistance, smooth to remove chips and drill holes. Sharper cutting edge can reduce cutting force and improve drilling quality. Strictly symmetrical cutting edge can ensure high efficient working. High quality material The PCB Drill Bits are made of high quality tungsten steel, highly wear resistance, high hardness, bending strength, anti-impairment, highly working efficiency. High Precision With sharp cutting edge, milling groove and clean surface, these sets of tool work quickly and cleanly, no glitches or scrap left. Portable & easy to store The hand drills set is small in size, so you can store them in your toolbox easily and use them anywhere. Enjoy making crafts!

Review: Always buy these bits in bulk!! - Excellent for scale models!! These micro drill bits will work in any adjustable chuck hand drill. As some of the bits are oh so easy to break, at this price point it’s worth having extras on hand.
Review: Great bits - I used these on my micro drill press. They performed as they should. I added a little extra speed to the and they held up well. I am very pleased. I drill into brass, plated silver and sever other metals and these bits perform very good.

## Features

- 【High Quality】The PCB Drill Bits are made of high quality tungsten steel, highly wear resistance, high hardness, bending strength, anti-impairment, highly working efficiency.
- 【Multi Size】This Set contains 10 different size drill bits diameter: 0.3mm, 0.4mm, 0.5mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1 mm, 1.1mm, 1.2mm, each size have 5 pcs.
- 【High Precision】 With sharp cutting edge, milling groove and clean surface, these sets of tool work quickly and cleanly, no glitches or scrap left.
- 【Application】Great for 3D Printer Nozzle Cleaning, Amber beeswax, circuit boards, bakelite, CNC engraving plexiglass, jewelery, metal plastic and other precision drilling.
- 【Good Package】Package with high quality plastic box, easy carry and better protection keeps the blade tip goods in the delivery from being damaged.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07S636JHY |
| Best Sellers Rank | #15,815 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #4 in Circuit Board Drill Bits #336 in Drill Bits |
| Brand | WayinTop |
| Brand Name | WayinTop |
| Customer Reviews | 4.4 out of 5 stars 1,772 Reviews |
| Cutting Diameter | 1.2 Millimeters |
| Finish Type | Steel |
| Finish Types | Steel |
| Item Dimensions | 3.94 x 1.97 x 0.2 inches |
| Item Weight | 185 Grams |
| Item dimensions L x W x H | 3.94 x 1.97 x 0.2 inches |
| Manufacturer | WayinTop |
| Material | Tungsten Steel |
| Material Type | Tungsten Steel |
| Minimum Bore Diameter | 0.3 Millimeters |
| Model | WYTP21 |
| Number of Flutes | 3 |
| Point Style | Spear Point |
| Shank Type | Straight |
| Surface Recommendation | Steel,Stone |
| Tool Flute Type | Spiral |
| UPC | 713871273991 713871270419 |
| Unit Count | 50.0 Count |

## Product Details

- **Brand:** WayinTop
- **Cutting Diameter:** 1.2 Millimeters
- **Finish Type:** Steel
- **Material:** Tungsten Steel
- **Shank Type:** Straight

## Images

![50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each) - Image 1](https://m.media-amazon.com/images/I/617y1yGYkwL.jpg)

## Questions & Answers

**Q: What is the diameter of the shaft?  Will it fit in a standard pin vise?**
A: Diameter of the shaft is 1/8" or .125

**Q: Can I put these in a dremel tool?**
A: Absolutely, but you have to remember these are extremely brittle.  ANY side force will break the bit.  You are best served using them in some sort of press but with very steady hands and a thoughtful method, operating by hand is possible.

**Q: can these be use by hand twisting on brass jets in carburetors to enlarge the one increiment at a time?**
A: I'm going to say yes. I twist them by hand, but I should also mention that I'm drilling into wood. I build model ships. Drilling into brass might be possible, but be aware that these bits, although very effective drilling into wood, are very brittle. I can't tell you how many have snapped on me when I least suspect it and I have to break out another set. I've learned to drill carefully and with patience.
Other than that, I do like these bits and have started using them in my Dremel.

**Q: Are these recommended for drilling into raw semi-precious stones (like Crystal Quartz, amethyst, agate etc) for the purpose of creating pendant holes?**
A: No. You really need a diamond bit or hole saw, depending on the size. You'll also want to have a water drip going or at least use some sort of lubricant such as beeswax or gem lube.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Always buy these bits in bulk!!
*by A***R on June 30, 2025*

Excellent for scale models!! These micro drill bits will work in any adjustable chuck hand drill. As some of the bits are oh so easy to break, at this price point it’s worth having extras on hand.

### ⭐⭐⭐⭐⭐ Great bits
*by S***N on February 21, 2026*

I used these on my micro drill press. They performed as they should. I added a little extra speed to the and they held up well. I am very pleased. I drill into brass, plated silver and sever other metals and these bits perform very good.

### ⭐⭐⭐⭐ Good, but fragile
*by I***N on February 11, 2025*

Bought these for plastic model building. They work great for drilling out spark plug wires in styrene. I wouldn't try drilling out metal, other than a foil. They are very fragile.

## Frequently Bought Together

- WayinTop 50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each)
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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-16*