---
product_id: 328109093
title: "MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint"
brand: "mna"
price: "27963 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Mna"
url: https://www.desertcart.hu/products/328109093-mna-45-degree-lock-miter-router-bit-3-piece-set
store_origin: HU
region: Hungary
---

# Universal 1/4” shank fits all major routers C3 Carbide for superior wear resistance 3-piece set for versatile cutting heights MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint

**Brand:** mna
**Price:** 27963 Ft
**Availability:** ✅ In Stock

## Summary

> 🔧 Elevate your woodworking game with precision and power!

## Quick Answers

- **What is this?** MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint by mna
- **How much does it cost?** 27963 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/328109093-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

- • **Multi-Wood Versatility:** Effortlessly work with MDF, hardwood, softwood, and particleboard—expand your creative horizons.
- • **Universal Compatibility:** 1/4” shank designed to seamlessly integrate with all major router brands—no adapters needed.
- • **Lock Miter Joint Mastery:** Create self-aligning, interlocking 90° joints that deliver both strength and aesthetic perfection.
- • **Industrial-Grade C3 Carbide:** Experience razor-sharp edges and unmatched durability that keep your projects looking professional.
- • **Precision-Crafted 3-Piece Set:** Tailor your joinery with 1/2”, 5/8”, and 3/4” cutting heights for flawless fit every time.

## Overview

The MNA 45 Degree Lock Miter Router Bit 3-Piece Set features industrial-grade C3 carbide for superior sharpness and wear resistance. Designed with three cutting heights (1/2”, 5/8”, 3/4”) and a universal 1/4” shank, it offers versatile compatibility with all major routers. Ideal for creating strong, self-aligning 90° lock miter joints across various wood types, this set is a must-have for professionals seeking flawless, durable corner joinery.

## Description

MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint - desertcart.com

Review: Double check the quality control before spending an hour trying to troubleshoot a defective bit. - 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!
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 1/4” 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 |
|---------------|-------|
| ASIN | B092CJW3TR |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #47,108 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #6 in Joinery Router Bits |
| Customer Reviews | 4.3 4.3 out of 5 stars (796) |
| Cutting Diameter | 0.25 Inches |
| Date First Available | April 13, 2021 |
| Item Package Quantity | 1 |
| Item Weight | 9.6 ounces |
| Item model number | JS-03A4 |
| Manufacturer | MNA |
| Number of Flutes | 2 |
| Package Dimensions | 6.18 x 4.88 x 2.52 inches |
| Part Number | JS-03A4 |
| UPC | 770773583245 |

## Product Details

- **Brand:** MNA
- **Cut Type:** Glue Joint Cut
- **Item Weight:** 0.27 Kilograms
- **Material:** Carbide
- **Size:** 1/4 Inch

## Images

![MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint - Image 1](https://m.media-amazon.com/images/I/617U-itle8S.jpg)

## Available Options

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

## Questions & Answers

**Q: Can these miter uhmw sheets?**
A: Yes they can. being a "Large" bit, you should slow down the router speed, this will also help  prevent melting.

**Q: How is the quality of the brand MNA?**
A: Ok.  This is a cheaper brand so quality is a bit lower but for small infrequent projects their bit sets are great!

**Q: Can it be used for 22.5 angles? I want to do an octagon with pieces locking into each other.**
A: No, this is only for a 45 degree angle. That would require a different bit altogether.

**Q: What is the cutting edge made of: carbide or HSS?**
A: They are made of carbide.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 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!

### ⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- MNA 45 Degree Lock Miter Router Bit 3-Piece Set, for 1/2”, 5/8”, 3/4” Cutting Height, 1/4 Inch Shank. Easy to Create Lock Miter Joint
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- FivePears 2 Pieces of Tongue and Groove Router Bits Set with 1/4" Shank,3 Teeth T Shape Wood Milling Cutter Woodworking Tool

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-03-22*