---
product_id: 541880223
title: "JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4\", 3/8\", 1/2\", 5/8\" & 3/4\",1/4\" ROUND SHANK,METAL COUNTERSINK BIT SET"
brand: "jnb pro"
price: "₩72501"
currency: KRW
in_stock: true
reviews_count: 5
url: https://www.desertcart.kr/products/541880223-jnb-pro-countersink-drill-bit-set-for-metal-5-pc
store_origin: KR
region: South Korea
---

# 5% Cobalt 82° Flute Design 5-Piece Set JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET

**Brand:** jnb pro
**Price:** ₩72501
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate Your Craftsmanship with Precision and Power!

## Quick Answers

- **What is this?** JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET by jnb pro
- **How much does it cost?** ₩72501 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/541880223-jnb-pro-countersink-drill-bit-set-for-metal-5-pc)

## Best For

- jnb pro enthusiasts

## Why This Product

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

## Key Features

- • **Corrosion Resistant:** Black & Gold finish ensures longevity and performance.
- • **Unmatched Durability:** Crafted from HSS-Co M35, these bits outlast standard steel.
- • **Effortless Chamfering:** Designed specifically for smooth countersinking in metal and wood.
- • **Precision Engineering:** 82° flutes minimize vibration for a flawless finish.
- • **Versatile Compatibility:** Fits all hand and stationary drills for ultimate convenience.

## Overview

The JNBPRO Countersink Drill Bit Set is a premium 5-piece collection designed for professional-grade metalworking. Made from high-speed steel with 5% cobalt (HSS-Co M35), these bits offer exceptional durability and precision. With an innovative 82-degree design and a corrosion-resistant finish, they ensure smooth drilling and a perfect chamfer every time. Compatible with both hand and stationary drills, this set is essential for any serious craftsman looking to enhance their toolkit.

## Description

JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET

## Features

- METAL BIT COMPOSITION - Esclusively designed to work with industrial grade metals they are manufactured with High Speed Steel with 5% Cobalt known as HSS-Co M35 grade
- EFFICIENCY - Working with stationary drill ensures better finish on chamfers but they can be used with hand drills as well for countersinking in any hard or soft metal and any type of wood.
- DURABILITY - This metal counter sink bit set for steel is made for last longer than any other regular High Speed Steel bits, they are extremely sharp and finished with black & Gold corrosion proof.
- DESIGN - Designed with 82 degree 5 flutes to reduce vibration and smoother drillling , the 1/4" round shank fits all stationary and hand drills
- IMPORTANTE TIPS FOR USE - The Metal Countersink Bits are just a chamfer tool to countersink the holes, it is not self drill tool, the pre drill with a metal drill bit with desired size for the screws has to be done before using it for countersink.

## Product Details

- **Material:** High Speed Steel M35 HSS-Co with 5% Cobalt
- **Finish Type:** Gold
- **Shank Type:** 1/4" Round
- **Cutting Angle String:** 82 Degrees
- **Brand:** JNB Pro

## Images

![JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET - Image 1](https://m.media-amazon.com/images/I/91w-zxgI+hL.jpg)
![JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET - Image 2](https://m.media-amazon.com/images/I/81ZpsxHwmNL.jpg)
![JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET - Image 3](https://m.media-amazon.com/images/I/81CnDb0Fa1L.jpg)
![JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET - Image 4](https://m.media-amazon.com/images/I/81O+6Ug6KoL.jpg)
![JNB Pro COUNTERSINK DRILL BIT SET FOR METAL,5 PC HIGH SPEED STEEL WITH 5% COBALT HSS-Co M35 GRADE, SIZES 1/4", 3/8", 1/2", 5/8" & 3/4",1/4" ROUND SHANK,METAL COUNTERSINK BIT SET - Image 5](https://m.media-amazon.com/images/I/71Le7bcAI0L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Hss countersink
  

*by D***S on Reviewed in the United States on 4 December 2023*

Great product. Yes does cut steel as advertised

### ⭐ 







  
  
    Cold rolled steel was a no-go
  

*by S***D on Reviewed in Canada on 27 August 2023*

I countersunk one hole in cold rolled steel with the 0.25" bit in the drill press and it was toast after that. It could have been a defective one, who knows.

### ⭐⭐⭐⭐⭐ 







  
  
    The size was great.
  

*by A***R on Reviewed in the United States on 1 July 2023*

I like them because they make a nice counter sink hole.

## Frequently Bought Together

- JNB Pro 5PC Countersink Bits for Steel - Sizes 1/4" 3/8" 1/2" 5/8" 3/4", Metal Working Countersinks, 5 Flute Design 82° M35 HSS 5% Cobalt Grade Bit 1/4" Shank - Ideal for Stationary or Hand Drill
- 7 Pieces Center Drill Bits Set, M2 High Speed Steel 60-Degree Angle Center Drill Bits Kit Countersink Tools for Lathe Metalworking Size 1.0 1.5 2.0 2.5 3.0 4.0 5.0
- OCGIG 4pcs Countersink Chamfer Tool HSS(4241) Deburring Tool Set Metal Wood Drill Bits

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-14*