---
product_id: 111378099
title: "Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2"
brand: "chiloskit"
price: "KD 1.74"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/111378099-countersink-drill-bit-set-for-steel-3-flute-90-degree
store_origin: KW
region: Kuwait
---

# 6 precision sizes from 6.3mm to 20.5mm HSS 4231 steel for heat & corrosion resistance 3-flute design for smooth chip removal Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2

**Brand:** chiloskit
**Price:** KD 1.74
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your craft with precision and power — don’t drill without it!

## Quick Answers

- **What is this?** Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 by chiloskit
- **How much does it cost?** KD 1.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/111378099-countersink-drill-bit-set-for-steel-3-flute-90-degree)

## Best For

- chiloskit enthusiasts

## Why This Product

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

## Key Features

- • **DIYer’s Dream Gift:** Perfect for professionals and weekend warriors aiming for flawless finishes
- • **Versatile Size Range:** Includes 6 popular diameters to tackle a wide variety of metal and wood projects
- • **Optimized Chip Evacuation:** One-piece design prevents clogging, boosting your workflow efficiency
- • **Built to Last Under Pressure:** Crafted from premium HSS 4231 steel for superior heat and rust resistance
- • **Effortless Precision Chamfering:** 3-flute geometry ensures clean, burr-free edges every time

## Overview

This 6-piece Countersink Drill Bit Set features high-speed steel (HSS 4231) construction with a 3-flute design for efficient chip removal and durability. Designed for materials under 45HRC like carbon steel, aluminum, and wood, it offers six precise sizes (6.3mm to 20.5mm) to chamfer holes quickly and cleanly. Ideal for professional metalworking and woodworking, this set enhances drilling efficiency and finish quality.

## Description

Specification: Head Diameter *Shank Diameter * Length  6.3MM: 6.3MM*5MM*37MM  8.3MM: 8.3MM*6MM*40MM  10.4MM:10.4MM*6MM*39MM  12.4MM:12.4MM*10MM*46MM  16.5MM:16.5MM*10MM*47MM  20.5MM:20.5MM*10MM*47MM  Material:HSS4241  Package Included:  6pcs Three edge chamfering

## Features

- [Wide application]: This counter sink bit Suitable for workpieces with hardness less than 45HRC, such as carbon steel, aluminum plate, carbon steel, thin iron plate, insulating plate, PVC plate, wood board, etc.(Not Great for Stainless Steel）
- [Efficiency]: this wood metal drilling bit has a one-piece design, which makes the chips generated during the chamfering process more convenient, and will not delay work efficiency due to tool blockage.
- [HSS 4231]: each metal countersunk drill bit is made from high quality HSS material, Chiloskit countersink drill bit set is excellent in heat, corrosion and rust resistance.
- [Ease of use]: The automatic through-hole chamfering cutter can quickly trim and chamfer both sides of the hole in a few seconds.including 6 most popular sizes: : 6.3mm(1/4''), 8.3mm(5/16''), 10.4mm(2/5''), 12.4mm(1/2''), 16.5mm(5/8''), 20.5mm(4/5'').Shank: round shank.Not recommended to use hand drills.
- Great gift for man DIYer . Don't settle for less - choose our countersink drill bit set for a superior drilling experience.If you are not satisfied withthe functions or any other reasons, just return it to us and we’ll be happy to resolve any problems

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Preamer |
| Part Number | 1 |
| Product Dimensions | 10 x 10 x 10 cm; 100 g |
| Item model number | LK-154565 |
| Colour | Sliver |
| Finish | Carbon Steel,Hss |
| Material | High Speed Steel (HSS) |
| Item Package Quantity | 1 |
| Number of Pieces | 6 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 100 g |

## Product Details

- **Material:** High Speed Steel (HSS)
- **Cutting diameter:** 6.3 Millimetres
- **Finish type:** Carbon Steel,Hss
- **Shank type:** Round
- **Cutting angle string:** 90 Degrees

## Images

![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 1](https://m.media-amazon.com/images/I/61Qhhef1ypL.jpg)
![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 2](https://m.media-amazon.com/images/I/71qtL+XryaL.jpg)
![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 3](https://m.media-amazon.com/images/I/71xcYiG92ML.jpg)
![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 4](https://m.media-amazon.com/images/I/61uZ6uLto+L.jpg)
![Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2 - Image 5](https://m.media-amazon.com/images/I/71N9CPHcOkL.jpg)

## Questions & Answers

**Q: What are the shank diameters?**
A: Dear  friend
Head Diameter *Shank Diameter * Length 
                  6.3MM: 6.3MM*5MM*37MM 
                  8.3MM: 8.3MM*6MM*40MM 
                   10.4MM:10.4MM*6MM*39MM 
                 12.4MM:12.4MM*10MM*46MM 
                  16.5MM:16.5MM*10MM*47MM 

Any question ,just feel free to tell us 
Regards
Preamer

**Q: do these come only in metric or is imperial available as well?**
A: metric

**Q: How do these perform on stainless steel to deburr holes?**
A: They work good in a2,d2, and stainless 304. I have several types, 60, 82, and 90 deg. I don't run a high rpm though. I use these in a hand drill motor and in my mill. Remember start slow, multi blade with light chip depth will give a good finish. They're though enough to champher an edge also, at least occasionally!

**Q: What is the correct speed to avoid the chattering that leaves a very poor finish in the countersink?**
A: Try running them at a higher speed and make sure EVERYTHING is as solidly locked down as possible. good luck

## Frequently Bought Together

- Countersink Drill Bit Set for Steel, 3 Flute 90 Degree HSS Chamfering Tool Bit for Metal Wood Woodworking Metal Working Tool Bit Set, Pack of 6pcs 1/4 1/2
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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-27*