---
product_id: 331451391
title: "amoolo 5/16\" Cobalt Drill Bit(10pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron Box of 10"
brand: "amoolo"
price: "$72.69"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/331451391-amoolo-5-16-cobalt-drill-bit-10pcs-m35-hss-metal
store_origin: US
region: United States of America
---

# 135° Split Point 10Pcs Set M35 Cobalt Steel amoolo 5/16" Cobalt Drill Bit(10pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron Box of 10

**Brand:** amoolo
**Price:** $72.69
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Like a Pro—Elevate Your DIY Game!

## Quick Answers

- **What is this?** amoolo 5/16" Cobalt Drill Bit(10pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron Box of 10 by amoolo
- **How much does it cost?** $72.69 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/331451391-amoolo-5-16-cobalt-drill-bit-10pcs-m35-hss-metal)

## Best For

- amoolo enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Crafted from M35 cobalt steel for superior wear-resistance.
- • **Efficient Performance:** Fully ground design reduces friction for cooler, faster drilling.
- • **Precision Engineering:** 135° split point design ensures accurate drilling without walking.
- • **Versatile Applications:** Ideal for hard metals, plastics, and more—perfect for any project.
- • **Satisfaction Guaranteed:** 90-day warranty for peace of mind—your satisfaction is our priority.

## Overview

The amoolo 5/16" Cobalt Drill Bit Set includes 10 high-speed steel drill bits designed for precision and durability. Made from M35 cobalt steel, these bits are perfect for drilling through hard metals like stainless steel and cast iron, as well as softer materials. With a fully ground design and a 135° split point, they ensure efficient and accurate drilling, backed by a 90-day satisfaction guarantee.

## Description

amoolo 5/16" Cobalt Drill Bit(10pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron Box of 10

## Features

- 【10Pcs 5/16" Cobalt Drill Bits】10Pcs - 5/16”(Dia 8mm) x 3”(Flute Length 76.2mm) Metal Drill Bits.This drill bit fits the majority of power drill currently on the market.
- 【M35 Cobalt High Speed Steel】Industry grade M35 high speed steel drill bit set, much harder than HSS used in other similar drill bits set. These drill bits contain 5% Cobalt, which increases wear-resistance and durability.
- 【Fully Ground Process & 135° Split Point】Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed.
- 【Multiple Application】Perfectly suitable for cutting through Hard Metal such as Stainless Steel, Steel, Sheet Metal and Cast Iron as well as Plastic, Aluminum Alloy, Wood and Other Softer Metals. ✔ Pay attention to speed, pressure and heat control during drilling.
- 【90 DAYS WARRANTY】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement.

## Product Details

- **Material:** Cobalt, High Speed Steel (HSS)
- **Cutting Diameter:** 7.94 Millimeters
- **Finish Type:** Aluminum
- **Shank Type:** Round
- **Cutting Angle String:** 135 Degrees

## Images

![amoolo 5/16" Cobalt Drill Bit(10pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron Box of 10 - Image 1](https://m.media-amazon.com/images/I/71QWw0YV19S.jpg)

## Available Options

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

## Frequently Bought Together

- amoolo 5/16" Cobalt Drill Bit(10pcs), M35 HSS Metal Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron Box of 10
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- SALI Cobalt Drill Bit Set, 5Pcs 1/2" M35 High Speed Steel Jobber Length Drill Bit Kit for Hardened Metal, Stainless Steel, Cast Iron, Wood and Plastic, with Index Storage Case

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-26*