---
product_id: 136244978
title: "WayinTop 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: "$122757"
currency: COP
in_stock: true
reviews_count: 13
category: "Wayin Top"
url: https://www.desertcart.co/products/136244978-wayintop-50pcs-pcb-drill-bits-set-spiral-flute-carbide-0
store_origin: CO
region: Colombia
---

# 0.3-1.2mm multi-size range Tungsten steel durability 50 precision bits WayinTop 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:** $122757
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill like a pro, never miss a micro detail!

## Quick Answers

- **What is this?** WayinTop 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?** $122757 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co](https://www.desertcart.co/products/136244978-wayintop-50pcs-pcb-drill-bits-set-spiral-flute-carbide-0)

## 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

- • **Bulk Precision Power:** 50pcs set with 10 sizes (0.3-1.2mm) ensures you never run out during critical projects.
- • **Portable & Protected:** Comes in a sleek, durable plastic case for easy transport and damage-free storage.
- • **Flawless Cutting Edge:** Sharp spiral flutes deliver clean, glitch-free drilling on PCBs, jewelry, and more.
- • **Versatile Application:** Perfect for PCB, CNC engraving, jewelry, stone, and 3D printer nozzle cleaning—one set, endless possibilities.
- • **Tungsten Steel Toughness:** Crafted from high-hardness tungsten carbide for unmatched wear resistance and longevity.

## Overview

The WayinTop 50pcs PCB Drill Bits Set features 10 sizes of tungsten steel carbide bits (0.3mm to 1.2mm), designed for high precision and durability. Ideal for circuit boards, CNC engraving, jewelry, and more, this set offers sharp spiral flutes for clean cuts and comes in a protective plastic case for easy storage and transport.

## Description

Buy WayinTop 50pcs PCB Drill Bits Set Spiral Flute Carbide 0.3mm-1.2mm for Print Circuit Board Stone Dremel Jewelry CNC Engraving (5PCS Each): Circuit Board Drill Bits - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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: The drill sizes are not marked on the drills - My immediate reaction was the drill bits looked well made and the individual boxes will provide good protection for the drill bits. I wasn't thrilled that the bits are not marked with the size. It was not difficult to make labels to affix to each bit and I have already done so. Doing it took some time but at least I won't have to measure a bit every time I want to use them. I used a digital micrometer to measure each bit. As far as their performance goes they work great. They are very sharp and I have already used them on three types of wood and bamboo, as well as plastic. The bits cut through everything with ease. I even had to drill some holes on sloped surfaces and if you start slowly the bits will not deflect. I think because they are tungsten carbide they are quite stiff and that helps on angled surfaces. However, I am sure most users know that since they are stiff and being quite small diameters you will have best results if used with a drill press. Drilling by hand can be done but the risks of breaking bits is greater Overall I am very pleased and hopefully the bits will stay sharp over time.

## 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 | #17,030 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Circuit Board Drill Bits #349 in Drill Bits |
| Brand | WayinTop |
| Cutting Diameter | 1.2 Millimeters |
| Date First Available | May 23, 2019 |
| Finish Type | Steel |
| Item Weight | 6.5 ounces |
| Item dimensions L x W x H | 3.94 x 1.97 x 0.2 inches |
| Item model number | WYTP21 |
| Manufacturer | WayinTop |
| Material | Tungsten Steel |
| Number of Flutes | 3 |
| Number of Pieces | 50 |
| Point Style | Spear Point |
| Product Dimensions | 3.94 x 1.97 x 0.2 inches |
| Set Name | PCB Drill Bits Set |
| 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

![WayinTop 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.

### ⭐⭐⭐⭐⭐ The drill sizes are not marked on the drills
*by G***N on February 1, 2025*

My immediate reaction was the drill bits looked well made and the individual boxes will provide good protection for the drill bits. I wasn't thrilled that the bits are not marked with the size. It was not difficult to make labels to affix to each bit and I have already done so. Doing it took some time but at least I won't have to measure a bit every time I want to use them. I used a digital micrometer to measure each bit. As far as their performance goes they work great. They are very sharp and I have already used them on three types of wood and bamboo, as well as plastic. The bits cut through everything with ease. I even had to drill some holes on sloped surfaces and if you start slowly the bits will not deflect. I think because they are tungsten carbide they are quite stiff and that helps on angled surfaces. However, I am sure most users know that since they are stiff and being quite small diameters you will have best results if used with a drill press. Drilling by hand can be done but the risks of breaking bits is greater Overall I am very pleased and hopefully the bits will stay sharp over time.

### ⭐⭐⭐⭐ Good tools for a great price
*by R***R on September 11, 2025*

Great value with substantial flute length given the diameter of each drill.

## 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 Colombia*
*Store origin: CO*
*Last updated: 2026-01-23*