---
product_id: 12211139
title: "Irwin Tools IRWIN Drill Bit Set, Cobalt Alloy Steel, 15-Piece (316015)"
brand: "irwin"
price: "$140.42"
currency: USD
in_stock: true
reviews_count: 13
category: "Irwin"
url: https://www.desertcart.ec/products/12211139-irwin-tools-irwin-drill-bit-set-cobalt-alloy-steel-15
store_origin: EC
region: Ecuador
---

# clear lid for instant bit visibility stackable, travel-friendly case 15-piece cobalt alloy set Irwin Tools IRWIN Drill Bit Set, Cobalt Alloy Steel, 15-Piece (316015)

**Brand:** irwin
**Price:** $140.42
**Availability:** ✅ In Stock

## Summary

> 🔩 Drill smarter, not harder — the cobalt edge your toolkit deserves!

## Quick Answers

- **What is this?** Irwin Tools IRWIN Drill Bit Set, Cobalt Alloy Steel, 15-Piece (316015) by irwin
- **How much does it cost?** $140.42 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/12211139-irwin-tools-irwin-drill-bit-set-cobalt-alloy-steel-15)

## Best For

- irwin enthusiasts

## Why This Product

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

## Key Features

- • **Instant Bit Access:** Clear, stackable case lets you spot and grab the right bit in seconds—no more fumbling or lost pieces.
- • **Pro-Grade Performance:** Trusted by professionals for drilling through stainless steel, cast iron, and more with minimal wear.
- • **Customizable & Organized:** Patented bit-bar design allows easy removal and rearrangement for tailored kits on the go.
- • **Effortless Compatibility:** Three-flatted shank design fits perfectly in keyless chucks for quick bit changes and secure grip.
- • **Precision Meets Durability:** Cobalt alloy steel with a 135° split point ensures long-lasting sharpness and effortless drilling through tough metals.

## Overview

The IRWIN 15-piece Drill Bit Set features premium cobalt alloy steel with a 135° split point tip for superior durability and precision. Its clear, stackable case with patented bit-bar design offers quick access and customizable storage, while the three-flatted shank ensures compatibility with keyless chucks. Engineered for professionals tackling metals like stainless steel and cast iron, this set combines longevity and convenience in one sleek package.

## Description

Product Description The newly redesigned IRWIN Accessory Storage Cases are visibly better. The drill bit set has clear lids for easy viewing of content and are stackable for easy traveling and storage. They feature a patented bit-bar design for easy bit removal and customizable assortments of bits. From the Manufacturer Irwin Industrial Tools 316015 Drill Bit 15-Piece Cobalt Set. Irwin offers a complete line of Metal Twist Drill Bits, including Black Oxide, Turbo Point, Titanium Nitride and Cobalt Drill Bits.

Review: Always reliable and holds an edge - So much better than the less expensive bits I’ve always purchased.
Review: great bits for the price. go through 3/8" sheet steel like butter, and with cutting fluid they held up great so far. - used with some truetap cutting fluid and a Milwaukee d-handle drill from the 60s to drill multiple 5/16, 3/8" holes in 3/8" steel plate and slightly thinner angle for mounting a winch to an F250. These were great, I will never use anything but cobalt, and these Irwin were awesome for the money. I wished it would have come with a 1/2" bit but other than that, super solid buy.

## Features

- Visible clear lid of the drill bit set are desgined for easy viewing of contents
- Stackable - for convenient travel and storage
- Accessible - for customizable kits
- Redesigned tip helps promote long life
- Three-flatted shank design ideal for keyless chucks

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000EI9AZ |
| Best Sellers Rank | #205,972 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #436 in Jobber Drill Bits |
| Brand | IRWIN |
| Brand Name | IRWIN |
| Customer Reviews | 4.6 out of 5 stars 363 Reviews |
| Cutting Angle String | 135 degrees |
| Finish Type | Cobalt Alloy Steel |
| Finish Types | Cobalt Alloy Steel |
| Global Trade Identification Number | 00024721063625, 20024721063674 |
| Included Components | ......... |
| Item Dimensions | 10.25 x 10.94 x 11.06 inches |
| Item Type Name | ........ |
| Item Weight | 11.2 ounces |
| Item dimensions L x W x H | 10.25 x 10.94 x 11.06 inches |
| Manufacturer | IRWIN |
| Material | Cobalt |
| Material Type | Cobalt |
| Model | 316015 |
| Number of Flutes | 2 |
| Number of Pieces | 1 |
| Part Number | 316015 |
| Point Style | Split Point |
| Set Name | IRWIN Drill Bit Set |
| Shank Type | Straight |
| Surface Recommendation | Abs,Cast Iron,Metal,Metals,Stainless,Steel |
| Tool Flute Type | Spiral |
| UPC | 069060287837 735090394318 643749770553 788809213707 640024962856 044112272108 051020079149 024721063625 636123632158 024721063670 031113019610 100028845994 971489884385 |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer |

## Product Details

- **Brand:** IRWIN
- **Cutting Angle String:** 135 Degrees
- **Finish Type:** Cobalt Alloy Steel
- **Material:** Cobalt
- **Shank Type:** Straight

## Images

![Irwin Tools IRWIN Drill Bit Set, Cobalt Alloy Steel, 15-Piece (316015) - Image 1](https://m.media-amazon.com/images/I/61aHcRuVDXL.jpg)

## Questions & Answers

**Q: These are NOT 8% Cobalt?**
A: Amazon is shipping the 3018002 (5% cobalt) in error and not the 3018002b (8% cobalt) as listed in their product title and description. Wish they would straighten this out.

**Q: So is this a cobalt 8% bit (3018002b) or 5% cobalt (3018002)? in product description says 8% but part number says 5%. also is this made in usa?**
A: Amazon is shipping the 3018002 (5% cobalt) in error and not the 3018002b (8% cobalt) as listed in their product title and description. Wish they would straighten this out.

**Q: Where are these drill bits manufactured? Thanks.**
A: china, these are over price and cheap bits.

**Q: Are these the Brazil set? I know they make a set from China.::**
A: Made in China with Global materials.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Always reliable and holds an edge
*by A***E on September 29, 2024*

So much better than the less expensive bits I’ve always purchased.

### ⭐⭐⭐⭐⭐ great bits for the price. go through 3/8" sheet steel like butter, and with cutting fluid they held up great so far.
*by M***V on November 30, 2016*

used with some truetap cutting fluid and a Milwaukee d-handle drill from the 60s to drill multiple 5/16, 3/8" holes in 3/8" steel plate and slightly thinner angle for mounting a winch to an F250. These were great, I will never use anything but cobalt, and these Irwin were awesome for the money. I wished it would have come with a 1/2" bit but other than that, super solid buy.

### ⭐⭐⭐⭐⭐ Fantastic, opened it up and progressively drilled up to ...
*by J***N on June 16, 2018*

Fantastic, opened it up and progressively drilled up to 1/8" to extract a sheared bolt with no issues. Be sure to use some kind of lubricating oil like CLP or Seafoam DeepCreep to keep the cutting edge happy and stop periodically to blow out your chips. Also, using a center punch to get started is a must. I'm glad that I got this drill set and I'd recommend it.

## Frequently Bought Together

- Irwin Tools IRWIN Drill Bit Set, Cobalt Alloy Steel, 15-Piece (316015)
- Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz
- Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size

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---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-08-02*