---
product_id: 103207869
title: "SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch"
brand: "safercctv"
price: "€ 67.81"
currency: EUR
in_stock: true
reviews_count: 8
category: "Safer Cctv"
url: https://www.desertcart.nl/products/103207869-safercctv-square-hole-drill-bits-for-wood-4pcs-woodworking-mortising
store_origin: NL
region: Netherlands
---

# 4 precision sizes: 1/4" to 1/2" HSS steel, 56HRC hardness Fits 3/4" collar mortising attachments SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch

**Brand:** safercctv
**Price:** € 67.81
**Availability:** ✅ In Stock

## Summary

> 🪚 Drill square, drill sharp, drill smart — join the woodworking elite!

## Quick Answers

- **What is this?** SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch by safercctv
- **How much does it cost?** € 67.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/103207869-safercctv-square-hole-drill-bits-for-wood-4pcs-woodworking-mortising)

## Best For

- safercctv enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Size Range:** Four essential sizes (1/4", 5/16", 3/8", 1/2") to tackle any woodworking mortise project.
- • **Durability Meets Efficiency:** 56HRC hardness ensures long-lasting sharpness and faster, smoother cuts.
- • **Upgrade Your Woodworking Game:** Reduce labor, speed up projects, and cut costs with professional-grade precision tools.
- • **Optimized for Mortising Machines:** Designed exclusively for mortising attachments with 3/4" collars—perfect fit, zero compromise.
- • **Precision-Crafted Mortising Power:** High-speed steel bits engineered for clean, square wood holes every time.

## Overview

The SaferCCTV Woodworking Mortising Chisel Set includes four high-speed steel drill bits (1/4", 5/16", 3/8", 1/2") with 56HRC hardness, designed specifically for mortising machines with 3/4" collar attachments. This set delivers precise, durable, and efficient square hole drilling for professional woodworking projects, helping reduce labor and speed up construction.

## Description

Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries.Mortise chisel 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-InchSpecifications: - Material: HSS - Hardness: HRC 48~50 - Holder diameter: 19mm (circular) - Slotting flute diameter:3/4" - Total weight: approx 800g Package Included: - 4 x Tenon Hole Drill Bit

Review: Solo tienes que ser ingenioso pero las recomiendo - Yo le doy 5 Estrellas yo hise los ollos con un drill manual primero marque los ollos con la Broca y el tubo cuadrado después continue abriendo el ollo solo con la Broca y después use el tubo cuadrado para recortar.bien el agujero porque si usaba la broca y el tubo cuadrado al mismo tiempo no serbia pero me gustó mucho como trabajo me ahorro mucho tiempo y la recomiendo
Review: Drill bit - This drill bit work and did what I wanted it to do. Easy to use and I will need to order some smaller ones for a future project.

## Features

- 1. This Mortising Chisel set is great for drilling square holes in wood with a mortising machine. NOTE: If for drill press to use, must have a Mortising Attachment (NOT INCLUDED).
- 2. Square hole drill bit set fits mortising attachments with 3/4" collars. Our woodworking morstising chisel bits set Only use for the opening square hole and keyhole drill -- Square hole drill can not be used on an electric drill, bench drill, drill square holes need to fit a square hole drill drilling (Mortise and Tenon Machine) to use.
- 3. Material: high-speed steel, Hardness: 56HRC
- 4. Set of 4: 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch
- 5. Use matters: Square hole drill is mainly used for woodworking aspects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | SaferCCTV |
| Cutting Diameter | 0.25 Inches |
| Material | High Speed Steel (HSS) |
| Shank Type | Square |
| Surface Recommendation | Stainless Steel |
| Tool Flute Type | Mortise |

## Product Details

- **Brand:** SaferCCTV
- **Cutting Diameter:** 0.25 Inches
- **Material:** High Speed Steel (HSS)
- **Shank Type:** Square
- **Tool Flute Type:** Mortise

## Images

![SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch - Image 1](https://m.media-amazon.com/images/I/51+Kth+JIlL.jpg)
![SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch - Image 2](https://m.media-amazon.com/images/I/514WYgElThL.jpg)
![SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch - Image 3](https://m.media-amazon.com/images/I/51cxx95mYsL.jpg)
![SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch - Image 4](https://m.media-amazon.com/images/I/6192ozucvhL.jpg)
![SaferCCTV Square Hole Drill Bits for Wood, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch - Image 5](https://m.media-amazon.com/images/I/61IRy1JtEjL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solo tienes que ser ingenioso pero las recomiendo
*by A***N on January 27, 2026*

Yo le doy 5 Estrellas yo hise los ollos con un drill manual primero marque los ollos con la Broca y el tubo cuadrado después continue abriendo el ollo solo con la Broca y después use el tubo cuadrado para recortar.bien el agujero porque si usaba la broca y el tubo cuadrado al mismo tiempo no serbia pero me gustó mucho como trabajo me ahorro mucho tiempo y la recomiendo

### ⭐⭐⭐⭐⭐ Drill bit
*by W***R on December 11, 2025*

This drill bit work and did what I wanted it to do. Easy to use and I will need to order some smaller ones for a future project.

### ⭐⭐⭐⭐ Not great quality
*by V***Y on February 13, 2021*

I did use these but if you don’t have a special machine you are kinda wasting your money. I thought I could push these through soft pine, NOPE. My bad but they aren’t very high quality. I have now seen the mortise machine and they are expensive.

## Frequently Bought Together

- SaferCCTV Square Hole Drill Bits, 4Pcs Woodworking Mortising Chisel Set Bit 1/4-Inch, 5/16-Inch, 3/8-Inch, 1/2-Inch
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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-24*