---
product_id: 47730465
title: "EFFICERE 8-Piece Premium 1/2” Reduced Shank Silver and Deming Large Drill Bit Set in Aluminum Carry Case, M2 High Speed Steel, 135-Degree Split Point | SAE Inch Size 9/16” - 1” by 1/16th Increment"
brand: "efficere"
price: "R$806"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/47730465-efficere-8-piece-premium-1-2-reduced-shank-silver-deming
store_origin: BR
region: Brazil
---

# 135° split point for faster, wobble-free drilling M2 Cobalt HSS for ultimate durability Tri-flat shank locks tight in 3-jaw chucks EFFICERE 8-Piece Premium 1/2” Reduced Shank Silver and Deming Large Drill Bit Set in Aluminum Carry Case, M2 High Speed Steel, 135-Degree Split Point | SAE Inch Size 9/16” - 1” by 1/16th Increment

**Brand:** efficere
**Price:** R$806
**Availability:** ✅ In Stock

## Summary

> 🔩 Drill Like a Pro, Finish Like a Boss!

## Quick Answers

- **What is this?** EFFICERE 8-Piece Premium 1/2” Reduced Shank Silver and Deming Large Drill Bit Set in Aluminum Carry Case, M2 High Speed Steel, 135-Degree Split Point | SAE Inch Size 9/16” - 1” by 1/16th Increment by efficere
- **How much does it cost?** R$806 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/47730465-efficere-8-piece-premium-1-2-reduced-shank-silver-deming)

## Best For

- efficere enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Chip Clearance:** Deep spiral flutes rapidly eject debris, keeping your drilling clean and efficient every time.
- • **Organized & Ready to Go:** Complete 8-piece large-diameter set housed in a sleek aluminum case—carry, store, and impress on every project.
- • **Precision Speed Drilling:** 135° split point design ensures self-centering, faster cuts, and zero walking—get the job done right, right away.
- • **Industrial-Grade Strength:** Crafted from premium M2 cobalt high speed steel to power through wood, metal, and plastics with unmatched durability.
- • **Universal Fit & Secure Grip:** 1/2” reduced shank with unique tri-flat end locks firmly into all drill presses and most power tools—no slippage, no fuss.

## Overview

The EFFICERE 8-Piece Premium Drill Bit Set features industrial-grade M2 cobalt high speed steel construction with a 135° split point for fast, precise drilling. Its gold titanium and black nitride dual coating boosts durability and corrosion resistance by 80%. Designed with a 1/2” reduced tri-flat shank, these bits fit securely in all drill presses and most power tools. The set includes eight large sizes from 9/16” to 1” in 1/16” increments, all neatly organized in a durable aluminum carry case—perfect for professionals demanding reliability and efficiency.

## Description

EFFICERE 8-Piece Silver and Deming Drill Bit Set is your perfect choice for drilling large holes over half inch diameter on wood, plastic, aluminum, copper, cast iron, mild steel, stainless steel, sheet metals and many other types of materials. It serves a wide range of applications such as woodworking, auto repairs, equipment and machinery, metal fabrication and a lot more.   Constructed from premium cobalt high speed steel for dependable strength, these drills bits are built to last. Featuring 135-degree split point at tip, they start cutting with self centering for faster speed and prevent walking during drilling. A superior golden titanium and black nitride dual coating finish is applied to each drill that holds up lubricant better for smoother drilling and is 80% more durable and corrosion resistant than regular black enamel finish. All the tools have a universal 1/2 inch reduced shank with tri-flat end that securely locks onto the 3-jaw chuck from all brands of drill press and power tools.    Product Key Features:    ▲ Premium M2 Cobalt High Speed Steel (HSS) Construction for Maximum Strength and Durability. ▲ 135° Split Point for Faster and More Efficient Drilling without Walking.  ▲ Twist Blade with Deep Groove Design Quickly Clears Out Chips and Particles.  ▲ 1/2-Inch Reduced Shank Fits All Drill Press and Most Power Tools.  ▲ Unique Tri-Flatted Shank End Locks Securely onto 3-Jaw Chuck.  ▲ Comes with a Handy Aluminum Case for Easy Organizing and Storage in Toolbox and Tool Chest.   Size Included:    ▲ 9/16 Inch, 5/8 Inch, 11/16 Inch, 3/4 Inch, 13/16 Inch, 7/8 Inch, 15/16 Inch, 1 Inch

## Features

- ▲ PREMIUM QUALITY - Industrial grade M2 cobalt high speed steel construction for proven capability and durability to drill holes in wood, plastic, aluminum, copper, cast iron, mild steel, stainless steel, sheet metal and more
- ▲ FAST AND EFFICIENT - The 135° split point design at tip increases cutting and drilling speed through self-centering and prevents drills from walking or wobbling; The twisted blade with deep groove design clears out chips and particles faster than other drill bits
- ▲ SUPERIOR COATING - Best gold titanium and black nitride dual coating finish holds up lubricant more firmly for a smoother drilling process, and is also 80% more durable and corrosion resistant than regular black enamel finish to withstand heavy duty applications
- ▲ COMPATIBILITY AND FIT SECURELY - The 1/2 Inch reduced shank is compatible with all drill presses and most power tools in the market, and the unique Tri-flatted shank end locks onto a 3-jaw chuck more tightly and securely to eliminate slippage during operation
- ▲ NO SKIPPED LARGE SIZES - Set includes a full range of 8 pieces large-diameter silver and deming drill bits in a heavy duty aluminum storage case for easy carrying and organizing. Sizes: 9/16”, 5/8”, 11/16”, 3/4”, 13/16”, 7/8”, 15/16”, 1”

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Metal |
| Cutting Diameter | 9/16”, 5/8”, 11/16”, 3/4”, 13/16”, 7/8”, 15/16”, 1” Inches |
| Finish Type | Gold Titanium and Black Nitride Dual Coating |
| Shank Type | 3-Flat |
| Cutting Angle String | 135 Degrees |
| Brand | EFFICERE |
| Tool Flute Type | Spiral |
| Point Style | Split Point |
| Surface Recommendation | Aluminum, Copper, Metal, Plastic, Stainless Steel, Wood |
| Number of Flutes | 8 |
| UPC | 858574007136 |
| Set Name | 8-Piece Set in Aluminum Case |
| Unit Count | 1.0 Count |
| Manufacturer | UPHILL MERCHANDISE LLC |
| Number of Pieces | 8 |
| Part Number | DL-001 |
| Item Weight | 1 pounds |
| Package Dimensions | 10.04 x 8.32 x 1.93 inches |
| Item model number | DL |
| Is Discontinued By Manufacturer | No |
| Size | 8-Piece Set in Aluminum Case |
| Color | Gold and Black |
| Finish | Gold Titanium and Black Nitride Dual Coating |
| Item Package Quantity | 1 |
| Head Style | Tri-Point |
| Blade Length | 6 Inches |
| Measurement System | Inch |
| Special Features | Laser Etched Marking |
| Included Components | 8-Pc. Large and Jumbo Drill Bits: 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1” |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Metal
- **Cutting Diameter:** 9/16”, 5/8”, 11/16”, 3/4”, 13/16”, 7/8”, 15/16”, 1” Inches
- **Finish Type:** Gold Titanium and Black Nitride Dual Coating
- **Shank Type:** 3-Flat
- **Cutting Angle String:** 135 Degrees

## Images

![EFFICERE 8-Piece Premium 1/2” Reduced Shank Silver and Deming Large Drill Bit Set in Aluminum Carry Case, M2 High Speed Steel, 135-Degree Split Point | SAE Inch Size 9/16” - 1” by 1/16th Increment - Image 1](https://m.media-amazon.com/images/I/81FkjFLj3CL.jpg)

## Available Options

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

## Questions & Answers

**Q: Will these drill hard stainless steel?**
A: Probably not.  The bit set I received did not drill aluminum, until I honed the cutting edge with a very fine grit diamond file, because the cutting edge had small burrs (incomplete final machining).  The bits are labeled HSS (high speed steel), which is ordinarily good for cutting most stainless steels, when the bit cutting edges are honed razor sharp without residual burrs.  So this inexpensive bit set is good for the machinist who can finish the honing of the cutting edges with a diamond file or a diamond drill bit sharpener.

**Q: Are these actually cobalt? if so, why don't they say hss-co or m35/m42?**
A: Keep shopping. These are the worst bits I've bought off amazon. Half of them were slightly bent (they would wobble in my drill press). The ones that were straight, were very sharp the first use. The cutting edges got dull pretty quick. I'm an auto mechanic/fabricator/machinist so I do know how to use drill bits the correct way.

**Q: Can it drill through Brick?**
A: My answer would be no. These bits are primarily for drilling metal. They will drill wood, plastic and like products but they are NOT designed for drilling masonry which would include concrete, concrete blocks, and brick.

**Q: Which bits are better? The ones in aluminum case or wood case.**
A: So for I have only used one of the bits and it did a good job. I don’t know anything about the ones it the wooden box the ones I have are in the aluminum case. I have been a machinist for 40 years but I am retired now and the bits in the aluminum case are some of the best looking ones I’ve ever seen for the price. They have flats cut on the shank so they don’t spin in the chuck and they were very sharp. I hope I have answers your question for you.

## Frequently Bought Together

- EFFICERE 8-Piece Premium 1/2” Reduced Shank Silver and Deming Large Drill Bit Set in Aluminum Carry Case, M2 High Speed Steel, 135-Degree Split Point | SAE Inch Size 9/16” - 1” by 1/16th Increment
- Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size
- CaRoller 29Pcs Cobalt Drill Bit Set, 135 Degree Tip High Speed Steel with Black and Gold Finish, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case 1/16"-1/2"

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*