# Hole Saw Irwin 10504181 bi-metal 44 mm, variable tooth pitch 4.5/5.5 TPI

**URL:** https://aio.lv/en/product--irwin-10504181--5027496
**Data updated:** 2026-03-07 15:10 (EET)
**Category:** Drill Bits
**Manufacturer:** Irwin
**Manufacturer code:** 10504181
**EAN:** 5706915041811
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--irwin-10504181--5027496

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Irwin 10504181 is a 44 mm bi-metal hole saw with a variable tooth pitch of 4.5/5.5 TPI designed for cutting clean circular holes in metal and other materials. The bi-metal construction combines high-speed steel cutting edges with a flexible backing for durability and resistance to heat. Suitable for professional and DIY use with drill drivers and hole saw arbors.

## Long description

Irwin 10504181 bi-metal hole saw, 44 mm diameter, is designed for cutting precise circular openings in metal and a range of other materials. The bi-metal construction pairs high-speed steel teeth with a flexible steel backing to balance cutting performance and toughness. A variable tooth pitch of 4.5/5.5 TPI helps the saw cut efficiently across different material thicknesses while reducing vibration and improving chip evacuation.
Advantages
The bi-metal design provides a durable cutting edge resistant to heat and wear, extending tool life compared with standard carbon-steel hole saws. Variable tooth pitch enhances cutting speed and reduces the risk of tooth loading when working with both thin and thicker materials. The 44 mm diameter suits common hole sizes required for fittings and conduit, and the saw is compatible with standard drill drivers and hole saw arbors for straightforward mounting and removal.
Suitable for
Cutting circular holes in sheet metal and steel panels
Installing electrical boxes, conduits and cable glands
Plumbing and HVAC penetrations in thin metal surfaces
General workshop and on-site trade work with drill drivers
Key specifications
Diameter: 44 mm
Material: bi-metal (high-speed steel teeth bonded to flexible steel body)
Tooth pitch: variable 4.5 / 5.5 TPI
Cutting type: circular hole cutting for metal and mixed materials
Compatibility: fits standard drill drivers and hole saw arbors
How to use
Secure the hole saw to a compatible arbor and mount it in a drill driver rated for the application. Mark the centre of the hole and use a pilot bit if present to stabilise the saw before cutting. Start drilling at low speed to establish the cut, then increase speed as required, applying steady, moderate pressure. Use cutting lubricant or coolant when cutting ferrous metals to reduce heat and extend blade life. After completing the cut, clear chips from the saw and inspect the edge for wear before reuse.
Usage recommendations
For best results when cutting metal, use appropriate cutting fluid, maintain consistent feed rate, and avoid excessive side loads. Replace the saw if teeth become damaged or if cutting performance declines significantly.

## FAQ

### How much does the Irwin 10504181 bi-metal hole saw 44 mm cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 7 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 14.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Irwin products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Irwin service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/5027496/36028922_large.webp