---
product_id: 743243472
title: "BINSTAK CNC Spoilboard Surface Grouter Bit 1/2\" Shank 3\" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool"
brand: "binstak"
price: "€ 177.54"
currency: EUR
in_stock: true
reviews_count: 5
category: "Binstak"
url: https://www.desertcart.fr/products/743243472-binstak-cnc-spoilboard-surface-grouter-bit-1-2-shank-3
store_origin: FR
region: France
---

# 4-sided solid carbide inserts 3" large cutting diameter 1/2" industrial-grade shank BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool

**Brand:** binstak
**Price:** € 177.54
**Availability:** ✅ In Stock

## Summary

> ⚡ Flatten like a pro—cut sharp, last long, and never settle for less!

## Quick Answers

- **What is this?** BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool by binstak
- **How much does it cost?** € 177.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/743243472-binstak-cnc-spoilboard-surface-grouter-bit-1-2-shank-3)

## Best For

- binstak enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Industrial-grade steel body paired with replaceable carbide inserts for unbeatable durability and cost-efficiency.
- • **Precision Meets Power:** 3" cutting diameter with 4-wing design for ultra-efficient, balanced surface planing.
- • **Pro-Grade Resurfacing:** Ideal for flattening spoilboards, hardwood, MDF, plywood, and even acrylic—your all-in-one surface solution.
- • **Versatile Compatibility:** Works seamlessly with CNC, handheld, and table routers—perfect for any woodworking setup.
- • **Flawless Finish Every Time:** 4-edge carbide inserts rotate to maintain razor-sharp cutting, delivering burr-free, smooth surfaces.

## Overview

The BINSTAK CNC Spoilboard Surface Router Bit features a robust 1/2" shank and a large 3" cutting diameter with a 4-wing carbide insert design. Engineered for industrial-grade durability and precision, it offers replaceable solid carbide inserts that rotate to maximize lifespan and maintain a flawless finish. Compatible with CNC and handheld routers, this bit excels at flattening and resurfacing a wide range of materials including hardwood, MDF, plywood, and acrylic, making it a must-have for professional woodworkers and serious hobbyists alike.

## Description

BINSTAK 1/2" Shank CNC Spoilboard Surface, Planning, Slub Leveler, Surface Pinner, Bedskimming Insert Router Bit (Carbide) ✔ HIGH EFFICIENCY: Larger cutting diameter and more wings. ✔ Industrial grade, industrial super strong steel body, industrial insert knife. ✔ This industrial resurfacing router bit features a solid carbide insert knife with four edges, allowing the knife to rotate when one side is dull, providing the highest quality finish available with woodworking tools. Exquisite woodworking cutter, precise, smooth and no burr edge planer router bit. ✔ This routing bit is ideal for cutting large surface areas and surface planing. ● Large surface area quickly removes materials and improves the finish of the cut bottom. GREAT FOR HANDMADE AND OTHER WOOD WORKING - Our plain router bits are preferred by professionals and hobbyists. These bits can be used to make floors, cabinet doors and more. Great for home or improvement Specifications: Material: Heavy duty carbide Color: Black Shank: 1/2" Cut diameter: 3 inches Package Includes: 1 x CNC Spoilboard Surfacing Router Bit 1 x Plastic Box 4 x Extra Screws (Gift) All BINSTAK tools provide 100% satisfaction customer service - Lifetime Warranty - 12 months money back guarantee or replacement - To ensure quality, our products have been tested three times before leaving the factory. Excellent material, sharp cutter, accurate size. Please feel rest assured to buy.

Review: Well worth the money..used for epoxy table top...stayed sharp and cut clean.
Review: Peut être emballer plus sérieusement l'outils, Deux des quatres pastille en carbure avais un coin éclater.

## Features

- 4 Wing Insert CNC Router Bits: Shank: 1/2"; Cut Diameter: 3"; Carbide Insert: 12*12mm Large 3" cut diameter and 4 wing design make it more efficient and balanced tool while running
- Industrial Grade CNC Wood Router Bits: Super strong steel body, anti-kickback design, 4 cutting blades
- [High cost performance insert bit] The spoilboard surfacing router bit uses 4 sided solid carbide inserts. All four edges of the carbide insert are used and use a screwdriver to make other blade edges outward. Replace the carbide insert instead of replacing the whole bit as needed. Cost-effective solution compared to brazing router bits and carbide spiral bits
- This planer router bit is perfect for flattening wood slubs, resurfacing and smoothing the top of the spool board. Can be used on softwood, hardwood, particleboard, MDF, plywood compact panels, laminate, acrylic, etc
- Can be used with CNC and other automatic routers, handheld and table mounted portable routers. Carving machines, trimming machines, etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08T7K84WN |
| Amazon Bestseller | #442,659 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,156 in Router Bits |
| Batteries Included | No |
| Batteries Required? | No |
| Color | Black |
| Customer Reviews | 4.5 4.5 out of 5 stars (197) |
| Cutting Diameter | 3 Inches |
| Date First Available | January 21, 2021 |
| Item Diameter | 3 Inches |
| Item Shape | T-shaped |
| Item Weight | 415 g |
| Manufacturer | BINSTAK |
| Number of Flutes | 2 |
| Part number | IRB-1234 |
| UPC | 686082953801 |

## Product Details

- **Brand:** BINSTAK
- **Cut Type:** Up-Cut
- **Item Weight:** 0.42 Kilograms
- **Material:** Carbide Steel
- **Size:** 1/2" Shank-3" Cut Dia. (4 Inserts)

## Images

![BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool - Image 1](https://m.media-amazon.com/images/I/419xaGfDpOL.jpg)
![BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool - Image 2](https://m.media-amazon.com/images/I/41VuHhSfdoL.jpg)
![BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool - Image 3](https://m.media-amazon.com/images/I/41b4WFLrgML.jpg)
![BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool - Image 4](https://m.media-amazon.com/images/I/41esQwdeK6S.jpg)
![BINSTAK CNC Spoilboard Surface Grouter Bit 1/2" Shank 3" Cutting Diameter Carbide Insert Slab Flattening Router Bit Planing Bit Wood Planer Bit Woodworking Tool - Image 5](https://m.media-amazon.com/images/I/41iODXb6hGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***Y on March 19, 2024*

Well worth the money..used for epoxy table top...stayed sharp and cut clean.

### ⭐⭐⭐⭐ Review
*by F***3 on January 28, 2024*

Peut être emballer plus sérieusement l'outils, Deux des quatres pastille en carbure avais un coin éclater.

### ⭐ Review
*by S***S on August 7, 2024*

This bit came with damaged cutters. Thankfully I had a bunch of cutters and replaced them. I was using this in a 4x8 CNC as a spoil board cutter. It sounded like a helicopter when running at 12k RPM and 500ipm. Not only that but the vibrations were downright sketchy. It left a horrible finish since the cutters wouldn't index correctly in the holder. when you tightened the screws they would slightly rotate. Returned it and went with a CMT spoil board cutter that solves all the problems this one had.

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---

*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-29*