---
product_id: 515314841
title: "Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall"
brand: "itoolfirm"
price: "€ 6.24"
currency: EUR
in_stock: false
url: https://www.desertcart.ie/products/515314841-hole-saw-4-102mm-for-wood-hss-bi-metal-hole
store_origin: IE
region: Ireland
---

# Slug holes reduce friction, boost efficiency HSS bi-metal teeth for ultimate sharpness 4” (102mm) precision cut size Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall

**Brand:** itoolfirm
**Price:** € 6.24
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Cut Clean, Cut Smart — The Hole Saw That Means Business

## Quick Answers

- **What is this?** Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall by itoolfirm
- **How much does it cost?** € 6.24 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/515314841-hole-saw-4-102mm-for-wood-hss-bi-metal-hole)

## Best For

- itoolfirm enthusiasts

## Why This Product

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

## Key Features

- • **Risk-Free Purchase:** 60-day free return & replacement with responsive 12-hour support
- • **Durable Bi-Metal Teeth:** High-speed steel layered teeth ensure long-lasting sharpness and clean cuts
- • **Precision Perfect Cuts:** Less than 1mm diameter error for flawless installation every time
- • **Power-Saving Efficiency:** Less material cut means extended battery life on cordless tools
- • **Heat-Reducing Slug Holes:** Innovative design removes wood chips and lowers friction heat for faster work

## Overview

The ITOOLFIRM 4” (102mm) HSS Bi-Metal Hole Saw is engineered for precision and durability, featuring carbide-enhanced teeth and innovative slug holes that reduce heat and friction. Ideal for wood, plywood, drywall, and alloy steel, it delivers clean, accurate holes with less than 1mm error, boosting efficiency and extending power tool battery life. Backed by a 60-day satisfaction guarantee and responsive customer support, it’s the professional’s choice for ceiling, vent, and cable installations.

## Description

ITOOLFIRM HOLE SAWS for Wood, Ceiling, Vent Pipe and Drywall Features: BI-Metal + High Speed Steel(HSS) Extremely fast sawing with minimal expenditure of force High concentric and side-stroke precision ADVANTAGEs compare to other hole drills:  They can cut holes with much larger diameters than traditional drill bits. much more EFFICIENT than a spade drill or twist drill.  APPLIED TO CUT... Household wood Galvanized pipe Fire hose Gypsum board Holes in Ceiling for lights Holes for vent or fans Holes in table or wall for cable Cornhole COMPATIBLE DEVICE  Pistol drill bench drill vertical drill press Precondition: drill chuck is required COMPATIBLE MATERIAL Wood Plastic Aluminum Copper INSTRUCTIONS Pre-drill using light contact pressure. Continue drilling with minimal, even pressure. avoid oscillating while drilling.  Allow hole saw to “air” when using with wood and wood alternatives. The saw comes to a complete stop on your material before pulling it away. DIFFERENCE : Due to manual measurement and production batch is not the same, the size, weight, color will get difference (within 1%) of the normal case.

## Features

- ⚙️【HOLE CUTTER】The HSS hole saws are perfect cutting tools for installing recessed light into ceiling, for punching a big hole at wall to fit a vent pipe or an extract fan，and also for cable installation.
- ⚙️【SHARP TEETH】The bi-metallic cutting teeth is layered with high speed steel, that increases their hardness and durability, and gives the hole saw excellent cutting ability to punch a clean hole.
- ⚙️【ACCURATE CUTTING】 The increased hardness of the carbide technology and optimized tooth geometry allow our hole saw to provide faster and accurate cutting than standard hole saws, the diameter errors of the cut hole are less than a millimeter.
- ⚙️【MORE EFFICIENCY】The slug holes around the saw are able to remove the wood chips while cutting, reduce friction heat, improve the efficiency. And the due to the fact that less of total amount of material is actually cut, much less power is required, longer battery life of power tools is benefited.
- ⚙️【TRUST to PURCHASE】 Provide 60 days free return and replace service to make sure our customers’ satisfaction with every purchase. If you haven gotten imperfect Hole Saws, just contact us via email directly, we will be responsible for the quality of our products and reply in 12h, just enjoy your purchase.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Carbide, High Speed Steel, Alloy Steel, Metal |
| Brand | ITOOLFIRM |
| Colour | Red |
| Number of Teeth | 4 |
| Style | Standard |
| Item Thickness | 1/12 Inches |
| Item Weight | 0.36 Kilograms |
| Compatible Material | Wood, Alloy Steel |
| Manufacturer | ITOOLFIRM |
| Model number | HSRED-102MM |
| Special Feature | shock-resistant |
| Item Weight | 358 g |
| Package Dimensions | 10.49 x 10.49 x 5.31 cm; 358 g |
| Item model number | HSRED-102MM |
| Maximum Rotational Speed | 110 RPM |
| Are batteries included? | No |

## Product Details

- **Material:** Carbide, High Speed Steel, Alloy Steel, Metal
- **Brand:** ITOOLFIRM
- **Colour:** Red
- **Number of Teeth:** 4
- **Style:** Standard
- **Item Thickness:** 1/12 Inches
- **Item Weight:** 0.36 Kilograms
- **Compatible Material:** Wood, Alloy Steel

## Images

![Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall - Image 1](https://m.media-amazon.com/images/I/61PAoJtGccL.jpg)
![Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall - Image 2](https://m.media-amazon.com/images/I/61-rtXk+oIL.jpg)
![Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall - Image 3](https://m.media-amazon.com/images/I/61oiePUhqTL.jpg)
![Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall - Image 4](https://m.media-amazon.com/images/I/71KMcrRV0cL.jpg)
![Hole Saw 4” (102mm) for Wood, HSS Bi-Metal Hole Cutter with Pilot Drill Bit for Plywood, Cornhole, Ceiling and Drywall - Image 5](https://m.media-amazon.com/images/I/71C9C6HXzrL.jpg)

## Available Options

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

## Questions & Answers

**Q: is the width of the blade the actual hole measurement (includes the curf)?**
A: Yes. The diameter of the hole will be 3 3/4" but it might be slightly larger, maybe 1/16" due to movement during drilling.
If you are on a drill press with material clamped will be 3 3/4".

**Q: Will this cut through .125 aluminum?**
A: It could cut, but not recommended for 125mm aluminum, hardly and not clean.

**Q: What size are the threads?  I want to put it on another arbor with Quick Lock 7/16" shank with 5/8" threads.**
A: 3/8" triangel shank with 5/8" threads.

**Q: Would this work for a lock installation on a standard exterior door which has steel cladding?**
A: I read the description. It says for metal and wood. Elementary education is a wonderful thing.

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-09*