---
product_id: 328109092
title: "MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 3/4”, 1” Cutting Height, 1/2 Inch Shank. Easy to Create Lock Miter Joint"
brand: "mna"
price: "€ 80.27"
currency: EUR
in_stock: true
reviews_count: 8
category: "Mna"
url: https://www.desertcart.es/products/328109092-mna-45-degree-lock-miter-router-bit-3-piece-set
store_origin: ES
region: Spain
---

# 1/2” universal shank fits all routers 3 cutting heights (1/2”, 3/4”, 1”) C3 carbide for superior wear resistance MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 3/4”, 1” Cutting Height, 1/2 Inch Shank. Easy to Create Lock Miter Joint

**Brand:** mna
**Price:** € 80.27
**Availability:** ✅ In Stock

## Summary

> 🔧 Lock in strength, unlock your craftsmanship!

## Quick Answers

- **What is this?** MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 3/4”, 1” Cutting Height, 1/2 Inch Shank. Easy to Create Lock Miter Joint by mna
- **How much does it cost?** € 80.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/328109092-mna-45-degree-lock-miter-router-bit-3-piece-set)

## Best For

- mna enthusiasts

## Why This Product

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

## Key Features

- • **Versatile 3-Piece Set:** Adapt seamlessly to different wood thicknesses with 1/2”, 3/4”, and 1” cutting heights.
- • **Universal Compatibility:** 1/2” shank fits all major routers, making setup and tool integration effortless.
- • **Durable C3 Carbide Blades:** Experience long-lasting sharpness and superior finish on hardwood, softwood, MDF, and particleboard.
- • **Precision-Crafted Lock Miter Cuts:** Create flawless 90° interlocking joints with maximum glue surface for unmatched strength.
- • **Pro-Level Finish Without Fasteners:** Achieve clean, professional corners that look seamless and hold strong without nails or screws.

## Overview

The MNA 45 Degree Lock Miter Router Bit 3-Piece Set features precision-engineered C3 carbide blades with three cutting heights (1/2”, 3/4”, 1”) and a universal 1/2” shank. Designed for creating strong, self-aligning 90° lock miter joints on all wood types, this set delivers professional-grade, fastener-free corners with superior wear resistance and compatibility across all major routers.

## Description

MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 3/4”, 1” Cutting Height, 1/2 Inch Shank. Easy to Create Lock Miter Joint - desertcart.com

Review: They work! - Once it is set up properly they are the absolute best. It makes a strong secure miter with no fasteners. Works great on plywood. But do a search for locking miter bit set-up. There are lots of Youtube videos and articles that will help make it a lot easier.
Review: Pain to setup initially but extremely useful once you do - I ended up using this on White Oak wood and Hard Maple wood to allow for a flawless corner in my kitchen. Overall the corners turned out amazing but it took a ton of work to align on my routing table. I wish the router bit had a bearing or something similar as most tongue and groove bits do. If it did have this then you could just center your fence to this bearing and that would be it for alignment. However this set does not have that so you end up using a ton of scrap wood to get the settings dialed in. When you do though the lock is amazingly durable and impossible to tell that the two boards are joined. I am extremely happy with the finished product just frustrated with the initial setup. One thing I did that I would highly suggest is to keep some pieces of wood after routing them and dialing in the settings so that in the future you can just set the table to match these patterns again. This means that you really wouldn't have to go through this hassle every time after setting it up initially. Overall I am very happy with the outcome and I would buy this bit set again.

## Features

- American industry classification C3 Carbide. Provide superior wear resistance and sharp edges for the best finish.
- MNA Lock Miter Router Bit Set is the ideal way to create an interlocking joint for plenty of glue surfaces; the self-aligning characteristic during assembly and to join boards at 90 degrees. Great for a strong and durable joint.
- MNA Lock Miter Router Bit Set factory-matched router bit set comes with 3 different sizes for the different stock, it provides more fixability, convenience, and ease of setup.
- Fit for all types of wood material, such as MDF, hardwood, softwood, and particleboard.
- Universal 1/2” shank is compatible with all major router instruments. Lock miter bit can take quite a big bite out of the wood, so using these bits in a router table is strongly recommended.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | MNA |
| Cut Type | Lock Miter Cut |
| Item Weight | 0.57 Kilograms |
| Material | Carbide |
| Number of Flutes | 2 |
| Size | 1/2 Inch |

## Product Details

- **Brand:** MNA
- **Cut Type:** Lock Miter Cut
- **Item Weight:** 0.57 Kilograms
- **Material:** Carbide
- **Size:** 1/2 Inch

## Images

![MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 3/4”, 1” Cutting Height, 1/2 Inch Shank. Easy to Create Lock Miter Joint - Image 1](https://m.media-amazon.com/images/I/61gsamlzENS.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ They work!
*by A***R on January 13, 2025*

Once it is set up properly they are the absolute best. It makes a strong secure miter with no fasteners. Works great on plywood. But do a search for locking miter bit set-up. There are lots of Youtube videos and articles that will help make it a lot easier.

### ⭐⭐⭐⭐ Pain to setup initially but extremely useful once you do
*by A***S on September 29, 2022*

I ended up using this on White Oak wood and Hard Maple wood to allow for a flawless corner in my kitchen. Overall the corners turned out amazing but it took a ton of work to align on my routing table. I wish the router bit had a bearing or something similar as most tongue and groove bits do. If it did have this then you could just center your fence to this bearing and that would be it for alignment. However this set does not have that so you end up using a ton of scrap wood to get the settings dialed in. When you do though the lock is amazingly durable and impossible to tell that the two boards are joined. I am extremely happy with the finished product just frustrated with the initial setup. One thing I did that I would highly suggest is to keep some pieces of wood after routing them and dialing in the settings so that in the future you can just set the table to match these patterns again. This means that you really wouldn't have to go through this hassle every time after setting it up initially. Overall I am very happy with the outcome and I would buy this bit set again.

### ⭐⭐⭐⭐⭐ Double check the quality control before spending an hour trying to troubleshoot a defective bit.
*by K***E on December 8, 2023*

This was my first time using a miter lock bit, so of course I didn't know what to look for as far as quality control so hopefully this review will help someone not waste so much time. The whole premise of this bit is that the tongue and groove fit together to lock the 2 pieces of wood together. Therefore, the tongue and groove should be the same width in order for the 2 pieces to fit snuggly. If you look at the bit I received, the tongue is significantly larger than the groove and therefore no matter how hard I tried I could not make the 2 pieces of wood fit together. I didn't realize that this was an issue until about an hour of trying to troubleshoot it. Save yourself some time and just look at the bit before you use it. Because otherwise you will waste your time trying to make a defective bit work. Quality control was pretty poor on this one. The other 2 bits were fine, but I needed that specific size otherwise the miter doesn't work!

## Frequently Bought Together

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-06*