---
product_id: 490992437
title: "120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4\"(120mm))"
brand: "laiwei"
price: "¥9053"
currency: JPY
in_stock: false
reviews_count: 5
category: "Laiwei"
url: https://www.desertcart.jp/products/490992437-120mm-hole-saw-hole-cutter-drilling-tool-for-drilling-wood
store_origin: JP
region: Japan
---

# 120mm cutting diameter Chip-ejecting spring for faster work M42 & HSS bi-metal blade tech 120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm))

**Brand:** laiwei
**Price:** ¥9053
**Availability:** ❌ Out of Stock

## Summary

> 🔩 Cut Sharp, Work Smart — The Hole Saw That Means Business

## Quick Answers

- **What is this?** 120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm)) by laiwei
- **How much does it cost?** ¥9053 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/490992437-120mm-hole-saw-hole-cutter-drilling-tool-for-drilling-wood)

## Best For

- laiwei enthusiasts

## Why This Product

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

## Key Features

- • **Precision Meets Power:** Electron beam welded M42 & HSS steel ensures razor-sharp, vibration-free cuts every time.
- • **Optimized for Longevity:** Corrosion-resistant, wear-proof high-speed steel blade stays sharp longer, saving you replacement costs.
- • **Pro-Grade Compatibility:** Fits standard 10mm shafts and works seamlessly with electric and cordless drills for ultimate convenience.
- • **Effortless Chip Ejection:** Built-in spring mechanism pushes out debris, slashing cleanup time and boosting efficiency.
- • **Versatile Material Mastery:** Cuts through wood, metal, PVC, and more—your all-in-one solution for professional and DIY projects.

## Overview

The LAIWEI 120mm bi-metal hole saw combines high-speed steel and M42 carbon steel via electron beam welding to deliver precision, durability, and vibration-free cutting. Designed with a chip-ejecting spring and optimized for multiple materials including wood, metal, and PVC, it’s the go-to tool for professionals and DIYers seeking fast, clean holes with minimal effort.

## Description

Describe; LAIWEI 4.72Inch Hole Saw (120mm Hole Saw) ✔ Hole saw bits penetrate wood easily. These hole saws are perfect for jobs that require high performance and precision. Great for cutting wood, plastic, machined metal, nails, plywood, pipe and steel. ✔ The HSS high speed steel cutting edge of the hole saw provides impact resistant teeth and prevents them from falling out. Soft pads made of soft spring steel absorb the effects of hard-to-drill materials. ✔ Multipurpose power drill tool. Ideal for plumbing, construction, aircraft, electrical, maintenance and automotive applications. ✔ Hole knife cuts faster and smoother. Holes for plumbing and plumbing equipment, door locking equipment, pipes, hoses and antennas. NOTE: For safety, wear goggles and gloves when using the hole saw kit. What else can LAIWEI do?  7x24 customer service.  30-day unconditional return policy.

Review: Works really well.
Review: Good metal

## Features

- [Size] The hole saw has a total length of 83 mm, a cutting diameter of 120 mm, a hole saw blade thickness of 1.2 mm, a shaft diameter of 10 mm, and a center drill diameter of 6 mm.
- 【Material】The bi-metal hole saw blade is made of high-quality HSS high-speed steel, which has excellent sharpness, corrosion resistance, wear resistance and durability. The center drill and tool holder are made of high-quality M42 steel with excellent machinability and toughness.
- [Feature 1] LAIWEI high-quality hole cutter, M42 high carbon steel and tough HSS high-speed steel are welded by electron beam to achieve high cutting performance. By adopting the combined pitch, vibration during drilling can be suppressed, enabling high-precision machining. [Feature 2] There is a spring drilled in the center of the high-speed steel to push out the cut chips, reducing the time and effort required to remove the chips.
- 【Application】Electric drill tool: used to drill holes on gypsum board, plastic, wood, plywood, thin iron plate, thin stainless steel plate, thin aluminum plate, etc. It is used for plumbing work, electrical work and all kinds of drilling work, from professional workplaces to the spread of do-it-yourself and DIY. [Applicable models] Electric drill, cordless electric drill. If precision is required, use a drill or drill stand to make holes.
- [Note] Start hole saw cutting with low speed rotation. Be sure to use perpendicular to the member. Do not tilt the drill from the middle. When cutting metal, sprinkle cutting oil or water on it. Wear protective equipment such as goggles and masks when using.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R6QRWG4 |
| Best Sellers Rank | #49,484 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #84 in Hole Saws |
| Item model number | 21-SJJKKQ |
| Manufacturer | Laiwei |
| Product Dimensions | 60.96 x 17.78 x 0.03 cm; 680 g |

## Product Details

- **Brand:** Laiwei
- **Colour:** Red
- **Material:** Wood,Metal
- **Number of teeth:** 4
- **Product dimensions:** 61L x 17.8W centimeters

## Images

![120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm)) - Image 1](https://m.media-amazon.com/images/I/619O0BQYBhL.jpg)
![120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm)) - Image 2](https://m.media-amazon.com/images/I/51ALASAU6SL.jpg)
![120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm)) - Image 3](https://m.media-amazon.com/images/I/51q-va7SgpL.jpg)
![120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm)) - Image 4](https://m.media-amazon.com/images/I/61l8-z99WlL.jpg)
![120mm Hole Saw, Hole Cutter, Drilling Tool for Drilling Wood, Sheet Metal, Aluminium Profile, PVC and Other Materials, Round Knife (4-3/4"(120mm)) - Image 5](https://m.media-amazon.com/images/I/71muclpyTmL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works really well.
*by J***T on 6 August 2025*



### ⭐⭐⭐⭐⭐ Good metal
*by S***Y on 20 September 2020*



### ⭐⭐⭐⭐⭐ Did what I needed
*by J***S on 11 February 2026*



## Frequently Bought Together

- 120mm Hole Saw, LAIWEI Hole Cutter, Drilling Tool for Drilling Wood,Aluminum Profile,PVC and Other Materials,Round Knife (4-3/4"(120mm))
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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-07*