---
product_id: 489546841
title: "K1222 -Square Corner 12mm Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), 10pcs, Countersink Hole, for BINSTAK 1/4\" Shank 1-1/4\" Cut Dia. CNC Router Bit"
brand: "binstak"
price: "7957 som"
currency: KGS
in_stock: true
reviews_count: 11
category: "Binstak"
url: https://www.desertcart.kg/products/489546841-k1222-square-corner-12mm-carbide-inserts-4-edges-12mm-lengthx12mm
store_origin: KG
region: Kyrgyzstan
---

# 93 HRA ultra-hard tungsten carbide 12mm x 12mm x 2.2mm precision size 4 razor-sharp cutting edges K1222 -Square Corner 12mm Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), 10pcs, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit

**Brand:** binstak
**Price:** 7957 som
**Availability:** ✅ In Stock

## Summary

> ⚙️ Sharpen your edge, smooth your craft—cut like a pro with BINSTAK inserts!

## Quick Answers

- **What is this?** K1222 -Square Corner 12mm Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), 10pcs, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit by binstak
- **How much does it cost?** 7957 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/489546841-k1222-square-corner-12mm-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

- • **Cost-Effective Pack:** 10 inserts in a compact box—stock up and never slow your workflow.
- • **Precision 35° Bevel:** Engineered for smooth, mirror-finish cuts on complex wood surfaces.
- • **Quad-Edge Efficiency:** Maximize uptime with 4 cutting edges per insert—rotate, reuse, repeat.
- • **Versatile Compatibility:** Fits BINSTAK & NITOMAK CNC router bits for seamless tool upgrades.
- • **Durable Tungsten Carbide:** Solid carbide construction ensures long-lasting sharpness and strength.

## Overview

The BINSTAK K1222 carbide inserts feature a precise 12x12x2.2mm size with a 35° cutting angle and 4 sharp edges made from ultra-hard 93 HRA tungsten carbide. Designed for CNC router bits with a countersink hole for secure mounting, these inserts deliver smooth finishes on hardwoods, MDF, plywood, and acrylic. Each pack includes 10 durable, cost-effective inserts compatible with popular spiral and helical planer cutter heads, ideal for professional woodturning and woodworking applications.

## Description

BINSTAK Carbide Inserts Cutters Knives Replacement Blades Square Straight Insert Countersink Hole12 x 12 x 2.2 mm Woodworking Spiral Helical Planer Head 10 Pc's ✔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 1/4-Inch Shank Insert Surfacing Router Bit 2-Wing 1-1/4 Cutting Diameter (ASIN: B0B1MCWLG3) ✔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: Countersink hole Length - 12mm Width - 12mm Thickness - 2.2mm 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*2.2mm (length*width*thick), 35°angle, Hardness: 93HRA, 4 cutting edges. Countersink mounting hole.
- 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 | B0B1MJ9Z9P |
| Best Sellers Rank | #19,801 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #3 in Turning Inserts |
| Date First Available | May 18, 2022 |
| Item Weight | 1.44 ounces |
| Item model number | K1222 |
| Manufacturer | BINSTAK |
| Package Dimensions | 3.62 x 3.15 x 1.06 inches |

## Images

![K1222 -Square Corner 12mm Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), 10pcs, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit - Image 1](https://m.media-amazon.com/images/I/61Hnv0-IjrL.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 - K1222 -Square Corner 12mm Carbide Inserts 4 Edges (12mm lengthX12mm widthX2.2mm thick-35 Degree Cutting Angle), 10pcs, Countersink Hole, for BINSTAK 1/4" Shank 1-1/4" Cut Dia. CNC Router Bit
- BINSTAK CNC Spoilboard Surfacing Router Bit 1/4" Shank, Slab Flattening Router Bit with 1-3/8" Cutting Diameter, 2+2 Flutes Insert Carbide Wood Planer Router Bits, Planing Bit for Woodworking
- Wolfride 1/2-Inch Shank Router Bit Collet Extension, Adapter for 1/2-inch Shank Bits

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-02-13*