---
product_id: 677978513
title: "Box of 10 x HSS Gold Cobalt Jobber Drill Bit for Stainless & Hard Steels. Drills. UK Seller (4mm x 75mm Cobalt Jobber Drills)"
brand: "rennie tool company"
price: "234 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/677978513-box-of-10-x-hss-gold-cobalt-jobber-drill-bit
store_origin: PL
region: Poland
---

# 135° split point - zero walking, precision start High heat resistance - faster drilling, longer life M35 HSS with 5% Cobalt - ultimate durability Box of 10 x HSS Gold Cobalt Jobber Drill Bit for Stainless & Hard Steels. Drills. UK Seller (4mm x 75mm Cobalt Jobber Drills)

**Brand:** rennie tool company
**Price:** 234 zł
**Availability:** ✅ In Stock

## Summary

> 🔥 Drill Like a Pro, Last Like a Legend ⚙️

## Quick Answers

- **What is this?** Box of 10 x HSS Gold Cobalt Jobber Drill Bit for Stainless & Hard Steels. Drills. UK Seller (4mm x 75mm Cobalt Jobber Drills) by rennie tool company
- **How much does it cost?** 234 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/677978513-box-of-10-x-hss-gold-cobalt-jobber-drill-bit)

## Best For

- rennie tool company enthusiasts

## Why This Product

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

## Key Features

- • **Ready-to-Use Set:** Box of 10 gold-finished 4mm x 75mm cobalt jobber drills—perfect for professionals who demand consistency.
- • **Effortless Accuracy:** 135° split point design eliminates pre-drilling and centre punching, preventing bit walking for flawless starts.
- • **Unmatched Durability:** Crafted from M35 alloyed HSS with 5% cobalt for superior toughness and longevity.
- • **Precision Engineering:** Manufactured to DIN338 standards ensuring dimensionally exact and reliable performance every time.
- • **Heat-Resistant Powerhouse:** High heat resistance lets you drill through stainless and hard steels faster without losing edge sharpness.

## Overview

The Rennie Tool Company Box of 10 x 4mm x 75mm HSS Gold Cobalt Jobber Drill Bits combines M35 alloyed steel with 5% cobalt for exceptional durability and heat resistance. Featuring a 135° split point for precise, walk-free starts and manufactured to DIN338 standards, these drill bits are engineered for professional-grade performance on stainless and hard steels.

## Description

Rennie Tool Company Box of 10 x HSS Gold Cobalt Jobber Drill Bit for Stainless & Hard Steels. Drills. UK Seller (4mm x 75mm Cobalt Jobber Drills)

## Features

- M35 alloyed HSS steel with 5% Cobalt content / Fully ground from solid material
- Manufactured to DIN338 / Dimensionally precise
- 135 split point from 3mm and above eradicates the need to pre-drill or centre punch Prevents walking and enables faster penetration
- High heat resistance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Rennie Tool Company |
| Part number | BOX10COBJOBBER |
| Item Weight | 60 g |
| Package Dimensions | 10.3 x 6.2 x 0.9 cm; 60 g |
| Item model number | Rennie-HSS-CO-4mm-135SP |
| Size | 4mm x 75mm Cobalt Jobber Drills |
| Color | Gold |
| Finish | Gold |
| Material | Cobalt |
| Number Of Pieces | 10 |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Cobalt
- **Finish type:** Gold
- **Shank type:** solid
- **Cutting angle string:** 135 Degrees
- **Brand:** Rennie Tool Company

## Images

![Box of 10 x HSS Gold Cobalt Jobber Drill Bit for Stainless & Hard Steels. Drills. UK Seller (4mm x 75mm Cobalt Jobber Drills) - Image 1](https://m.media-amazon.com/images/I/71Q2NQtSiGL.jpg)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-06*