---
product_id: 204857645
title: "K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole"
brand: "binstak"
price: "€ 38.75"
currency: EUR
in_stock: true
reviews_count: 11
category: "Binstak"
url: https://www.desertcart.pt/products/204857645-k1215-12mm-square-corners-carbide-inserts-4-edges-12mm-lengthx12mm
store_origin: PT
region: Portugal
---

# 93 HRA ultra-hard tungsten carbide 12mm precision size 4 cutting edges for max use K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole

**Brand:** binstak
**Price:** € 38.75
**Availability:** ✅ In Stock

## Summary

> ⚙️ Cut sharp, last longer, and finish smoother—because your craft deserves the best!

## Quick Answers

- **What is this?** K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole by binstak
- **How much does it cost?** € 38.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/204857645-k1215-12mm-square-corners-carbide-inserts-4-edges-12mm-lengthx12mm)

## 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

- • **Precision 35° Bevel:** Engineered for smooth, mirror-finish cuts on complex curves and concave surfaces.
- • **Quad-Edge Efficiency:** 4 razor-sharp edges mean 4x the cutting power and longevity—flip and keep going!
- • **Unmatched Durability:** Solid tungsten carbide with 93 HRA hardness ensures long-lasting sharpness and strength.
- • **Versatile Compatibility:** Fits Spiral/Helical Planer Cutter Heads & CNC routers like NITOMAK and BINSTAK—one insert, endless projects.
- • **Cost-Effective Performance:** Rotate or replace edges instead of the whole blade—maximize your investment and minimize downtime.

## Overview

The K1215-12mm Carbide Inserts are precision-engineered solid tungsten carbide blades with a 35° cutting angle and 4 usable edges. Designed for woodworking and CNC routing, these inserts deliver superior hardness (93 HRA) and durability, ensuring smooth finishes on hardwoods, MDF, plywood, and acrylic. Compatible with popular spiral and helical planer heads, this pack of 10 offers cost-effective, long-lasting performance for professional-grade turning and surfacing applications.

## Description

BINSTAK Carbide Inserts Cutters Knives Replacement Blades Square Straight 12 x 12 x 1.5mm Woodworking Spiral Helical Planer Head 10pcs ✔Their solid carbide micro grain tips give superior tool life in a wide variety of materials for all general spiral planer head in hard woods and soft woods, the insert can be used for the heads of your jointer and planer. ✔35°cutting bevel, polished to a mirror finish for smoother cutting work. ✔Replacement carbide tips for CNC router fits BINSTAK Insert Surfacing Router Bit. ✔COST-EFFECTIVE. Rotate or replace the two or three small knives that were affected, and you are ready to get back to work. Leaves smooth finishing after cut. Specification: Material: Solid Tungsten Carbide Rockwell Hardness: 93.0HRA Shape: Square Straight 4-edges Hole: Straight hole Length - 12mm Width - 12mm Thickness - 1.5mm Bevel - 35 degree Applications: woodturning, woodworking Quantity: 10pcs/box Package Includes: 10 * Carbide Insert 1 * Plastic Box

Review: Sharp inserts. - Sharp sharp, good stuff for my slab bit.
Review: Quality blades - Great blades. I used these on a 3 blade slab flattening router bit. I rotated through all 4 sides of a set while flattening both sides on a 13ft black walnut slab. 1 set did the entire job, and left a really smooth surface. Def recommend them.

## Features

- 12mm*12mm*1.5mm (length*width*thick), 35°angle, Hardness: 93HRA, 4 cutting edges.
- Made of solid tungsten carbide, high strength and hardness, own longer use life, sharp and durable.
- Each blade has 4 sharp edges, if one is dull, just change it to the other side. More effective!
- Ideal for giving you a smooth finish on curved, concave surfaces, hollowing jobs and for general turning applications. Used on soft and hard woods, particle board, MDF, plywood compact panel, laminate, acrylic and etc.
- Fits for Spiral/Helical Planer Cutter Heads, Rougher Wood Turning Tools. Replacement carbide tips for CNC router fits NITOMAK and BINSTAK Insert Surfacing Router Bit 3-Wing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B087BDMCZ4 |
| Best Sellers Rank | #31,825 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Turning Inserts |
| Cutting Diameter | 12 Millimeters |
| Date First Available | April 19, 2020 |
| Item Diameter | 12 Millimeters |
| Item Weight | 0.64 ounces |
| Item model number | K1215 |
| Manufacturer | BINSTAK |
| Number of Flutes | 4 |
| UPC | 686082999793 |

## Product Details

- **Brand:** BINSTAK
- **Cut Type:** Up-Cut
- **Item Weight:** 18.14 g
- **Material:** Carbide
- **Size:** K1215

## Images

![K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole - Image 1](https://m.media-amazon.com/images/I/214jAqk3G9S.jpg)
![K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole - Image 2](https://m.media-amazon.com/images/I/41Be6s7LfrL.jpg)
![K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole - Image 3](https://m.media-amazon.com/images/I/41ISRV3xepS.jpg)
![K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole - Image 4](https://m.media-amazon.com/images/I/41JXS+DHlmS.jpg)
![K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole - Image 5](https://m.media-amazon.com/images/I/41KceKC63-S.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sharp inserts.
*by A***R on December 25, 2025*

Sharp sharp, good stuff for my slab bit.

### ⭐⭐⭐⭐⭐ Quality blades
*by A***R on September 23, 2025*

Great blades. I used these on a 3 blade slab flattening router bit. I rotated through all 4 sides of a set while flattening both sides on a 13ft black walnut slab. 1 set did the entire job, and left a really smooth surface. Def recommend them.

### ⭐⭐⭐⭐⭐ A Cut Above
*by A***H on February 5, 2024*

I bought these blade to flatten several semi-hardwood slabs 3 meters long by about 500 mm wide. I took them down from 55mm thick to 34 mm thick. Very happy with the finished result, they cut exceptionally well, and after all that cutting are still sharp. Very good.

## Frequently Bought Together

- BINSTAK - K1215-12mm Square Corners Carbide Inserts 4 Edges (12mm lengthX12mm widthX1.5mm thick-35 Degree Cutting Angle), Pack of 10, Straight-Hole
- CNC Spoilboard Surfacing Router Bit, 1/2" Shank 2" Cutting Diameter, Insert Carbide Slab Flattening Router Bit Planing Bit Wood Planer Bit by BINSTAK
- Wolfride 1/2-Inch Shank Router Bit Collet Extension, Adapter for 1/2-inch Shank Bits

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-02-06*