---
product_id: 52626605
title: "BL21A 21-Piece Assorted Set Black Oxide Metal Drill Bits with Included Case for Applications in Light-Gauge Metal, Wood, Plastic"
brand: "bosch"
price: "723 DH"
currency: MAD
in_stock: true
reviews_count: 13
category: "Bosch"
url: https://www.desertcart.ma/products/52626605-bl21a-21-piece-assorted-set-black-oxide-metal-drill-bits
store_origin: MA
region: Morocco
---

# Split-point tip for no-skate precision Three-flat shank prevents slipping Black oxide coating for longer bit life BL21A 21-Piece Assorted Set Black Oxide Metal Drill Bits with Included Case for Applications in Light-Gauge Metal, Wood, Plastic

**Brand:** bosch
**Price:** 723 DH
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Smarter, Last Longer — Own the Job with Bosch Precision!

## Quick Answers

- **What is this?** BL21A 21-Piece Assorted Set Black Oxide Metal Drill Bits with Included Case for Applications in Light-Gauge Metal, Wood, Plastic by bosch
- **How much does it cost?** 723 DH with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ma](https://www.desertcart.ma/products/52626605-bl21a-21-piece-assorted-set-black-oxide-metal-drill-bits)

## Best For

- bosch enthusiasts

## Why This Product

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

## Key Features

- • **Grip Like a Pro:** Three-flat shank design on larger bits ensures superior grip and slip resistance during intense jobs.
- • **Trusted by Industry Experts:** Preferred by contractors and electricians for reliable, professional-grade performance.
- • **Versatility in Your Toolbox:** 21 assorted sizes cover all your drilling needs from delicate plastics to tough metals.
- • **Pinpoint Precision Every Time:** Split-point tip engineered for clean, no-skate starts across wood, plastic, and light-gauge metal.
- • **Built to Outlast the Competition:** Heavy-duty black oxide coating reduces friction and extends bit lifespan beyond standard sets.

## Overview

The BOSCH BL21A 21-Piece Black Oxide Metal Drill Bit Set delivers professional-grade accuracy and durability with its split-point tips and friction-reducing black oxide coating. Designed for versatile use on wood, plastic, and light-gauge metal, its three-flat shank ensures a secure grip, making it the go-to choice for contractors and electricians seeking reliable, long-lasting drill bits in a comprehensive assortment.

## Description

Bosch Black Oxide Metal Drill Bits have been designed to satisfy contractors, electricians and other pros who need solid, reliable bits for general-application drilling in wood, plastic and light-gauge metal. The split-point tip has been engineered for no-skate starts and clean, accurate holes. The bit provides longer life than standard drill bits, thanks to the tip design and black oxide coating. The three-flat shank design on bits 3/16 In. and larger promotes better gripping and guards against slipping.

Review: Good quality - Bits are sharp and work good. I haven’t broke any so far.
Review: Drill bits - Great bits. Very sharp. It’s nice having new, sharp bits for a change.

## Features

- ACCURACY: featuring split-point tip engineered for No-skate, clean and accurate starts in a variety of drilling applications including wood, plastic and light-gauge metal.
- LONGEVITY: thanks to the unique bit design and heavy duty black oxide coating This set generates less friction and provides longer life than standard drill bits.
- RELIABLE: The Three-flat shank on bits 3 16 in. And larger promotes better grip and guards against possible slipping.
- UNIVERSAL: Universal drilling applications Designed for contractors, electricians and tool pros who need accurate and reliable bits for general-purpose use.
- VERSATILE: included bit sizes: (2) 1/16", (2) 5/64", (1) 3/32", (1) 7/64", (2) 1/8", (1) 9/64", (1) 5/32", (1) 11/64", (2) 3/16", (1) 13/64", (1) 7/32", (1) 15/64", (2) 1/4", (1) 5/16", (1) 3/8", (1) 1/2"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01J9LNZSO |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #158,188 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #327 in Jobber Drill Bits |
| Brand | Bosch |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (628) |
| Cutting Angle String | 16 Degrees |
| Cutting Diameter | 2 Inches |
| Date First Available | July 29, 2016 |
| Finish | Black Oxide |
| Finish Type | Black Oxide |
| Global Trade Identification Number | 00000346471489 |
| Included Components | 21 pc. Black Oxide Metal Drill Bits- See "About this item" above for more detail |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 1.14 pounds |
| Item dimensions L x W x H | 3 x 1 x 2 inches |
| Item model number | BL21A |
| Manufacturer | Bosch |
| Material | High Carbon Steel |
| Measurement System | Inch |
| Number of Flutes | 2 |
| Number of Pieces | 21 |
| Part Number | BL21A |
| Pattern | Solid |
| Point Style | Split Point |
| Power Source | Hand_powered |
| Product Dimensions | 3 x 1 x 2 inches |
| Set Name | 21-Piece Assorted Set |
| Shank Type | 3-Flat |
| Shape | Rectangular |
| Size | 21 Piece Set |
| Style | 21pc |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| UPC | 000346471489 |
| Unit Count | 1.0 Count |

## Product Details

- **Cutting Angle String:** 16 Degrees
- **Cutting Diameter:** 2 Inches
- **Finish Type:** Black Oxide
- **Material:** High Carbon Steel
- **Shank Type:** 3-Flat

## Images

![BL21A 21-Piece Assorted Set Black Oxide Metal Drill Bits with Included Case for Applications in Light-Gauge Metal, Wood, Plastic - Image 1](https://m.media-amazon.com/images/I/81ll4baumWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality
*by M***I on January 20, 2026*

Bits are sharp and work good. I haven’t broke any so far.

### ⭐⭐⭐⭐⭐ Drill bits
*by R***B on January 10, 2026*

Great bits. Very sharp. It’s nice having new, sharp bits for a change.

### ⭐⭐⭐⭐ FZ
*by F***P on December 30, 2025*

This is well-made with great drill bit points. It has width good chisel edge and good web thickness for hard metal drilling. Drawback: marking on the drill bits and holder case is very hard to read. It needs a better casing and size marking.

## Frequently Bought Together

- BOSCH BL21A 21-Piece Assorted Set Black Oxide Metal Drill Bits with Included Case for Applications in Light-Gauge Metal, Wood, Plastic
- BOSCH SDMSD45 45-Piece Driven Impact Tough Screwdriving Custom Case Assorted Set with Included Storage Case
- BOSCH ITBHQC201 1-Piece 2 In. Impact Tough Quick Change Bit Holder

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*Product available on Desertcart Morocco*
*Store origin: MA*
*Last updated: 2026-03-11*