---
product_id: 330827882
title: "Dewalt Step Drill Bit Set, 7/8-Inch To 1-1/8-Inch (Dwa1789Ir)"
brand: "dewalt"
price: "€ 101.87"
currency: EUR
in_stock: true
reviews_count: 5
category: "Dewalt"
url: https://www.desertcart.es/products/330827882-dewalt-step-drill-bit-set-7-8-inch-to-1
store_origin: ES
region: Spain
---

# Split point tip for faster, precise starts Two-flute spiral design for efficient chip removal Titanium Nitride Coating for durability Dewalt Step Drill Bit Set, 7/8-Inch To 1-1/8-Inch (Dwa1789Ir)

**Brand:** dewalt
**Price:** € 101.87
**Availability:** ✅ In Stock

## Summary

> 🔧 Step up your drilling game with precision and power!

## Quick Answers

- **What is this?** Dewalt Step Drill Bit Set, 7/8-Inch To 1-1/8-Inch (Dwa1789Ir) by dewalt
- **How much does it cost?** € 101.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/330827882-dewalt-step-drill-bit-set-7-8-inch-to-1)

## Best For

- dewalt enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Chip Removal:** Two-flute spiral design ensures smooth drilling with less clogging, boosting your workflow efficiency.
- • **Impact Driver Optimized:** Specifically engineered to handle the torque of impact drivers, making it the perfect companion for your power tools.
- • **Precision at First Contact:** Split point tip reduces walking and increases drilling speed, so you nail every project on the first try.
- • **Built to Last with Titanium Nitride:** Experience unmatched longevity and corrosion resistance that keeps your drill bits sharper, longer.
- • **Laser-Engraved Steps for Instant Clarity:** Easily identify drill sizes on the go, eliminating guesswork and saving valuable time.

## Overview

The Dewalt Step Drill Bit Set (7/8" to 1-1/8") features a titanium nitride coating for enhanced durability, a two-flute spiral design for superior chip removal, and a split point tip for faster, more accurate drilling starts. Laser-engraved size markings improve visibility, and the bits are optimized for impact driver use, making them a reliable choice for professionals seeking efficiency and longevity in their tools.

## Description

Buy Dewalt Step Drill Bit Set, 7/8-Inch To 1-1/8-Inch (Dwa1789Ir) online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Great bits
Review: Step drills

## Features

- Titanium Nitride Coated two flute spiral design provides longer life and better chip removal
- Split point tip increases speed
- Laser engraved numbers increases step visibility
- Optimized for impact driver usage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0090IHBQE |
| Best Sellers Rank | #44,947 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #198 in Power Drill Bit Sets |
| Brand | DEWALT |
| Brand Name | DEWALT |
| Country Of Origin | China |
| Customer Reviews | 4.7 out of 5 stars 2,947 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 1.13 Inches |
| Cutting angle string | 135 Degrees |
| Cutting diameter | 1.13 Inches |
| Finish Types | Titanium Nitride |
| Finish type | Titanium Nitride |
| Global Trade Identification Number | 00885911294096 |
| Included Components | 2 Steps: 7/8" and 1-1/8" |
| Item Dimensions | 15.2 x 7.3 x 2.9 centimeters |
| Item Type Name | 7/8", 1-1/8" IMPACT READY STEP DRILL BIT |
| Item Weight | 5 g |
| Manufacturer | DeWalt |
| Material | Titanium Nitride Coated |
| Material Type | Titanium Nitride Coated |
| Minimum Bore Diameter | 0.31 Inches |
| Model | DWA1789IR |
| Number of Flutes | 2 |
| Point Style | Split Point |
| Shank Type | Hex |
| Shank type | Hex |
| Surface Recommendation | Alloy Steel |
| Tool Flute Type | Spiral |
| UPC | 885911294096 |
| Unit Count | 1 Count |

## Product Details

- **Cutting angle string:** 135 Degrees
- **Cutting diameter:** 1.13 Inches
- **Finish type:** Titanium Nitride
- **Material:** Titanium Nitride Coated
- **Shank type:** Hex

## Images

![Dewalt Step Drill Bit Set, 7/8-Inch To 1-1/8-Inch (Dwa1789Ir) - Image 1](https://m.media-amazon.com/images/I/5197aeIgBXL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Do these work with the small 1/4 drive impacts?**
A: Yes, the DWA1790IR will work with the 1/4" Impact Driver.

**Q: Why do they advertise this as 7/8-Inch-1-1/8-Inch. Looks like it also does up to 7/8?**
A: I think the statement implies that is capable of doing an 7/8 hole for an 1/2 ko, and an 1 1/8 for a 1 inch ko. Also its a great step bit!

**Q: has anyone used these with stainless steel ? im looking at regular use with ss electrical panels and sheeting up to 1/4" thick.**
A: Yep, can be use with stainless steel like butter :)

**Q: Does these bits come in a carry case or bag**
A: No, this will not include a case or bag.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great bits
*by T***N on 13 March 2024*



### ⭐⭐⭐⭐⭐ Step drills
*by T***Y on 26 January 2025*



### ⭐⭐⭐⭐⭐ Good
*by M***L on 3 December 2025*



## Frequently Bought Together

- DEWALT Step Drill Bit Set, 7/8-Inch to 1-1/8-Inch (DWA1789IR)
- Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.es/products/330827882-dewalt-step-drill-bit-set-7-8-inch-to-1](https://www.desertcart.es/products/330827882-dewalt-step-drill-bit-set-7-8-inch-to-1)

---

*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-07*