# Step Drill Bit Smart365 4–20 mm HSS for metal and sheet materials

**URL:** https://aio.lv/en/product--smart365-11-s10420--11720809
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Smart365
**Manufacturer code:** 11-S10420
**EAN:** 5901769687998
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 10.99 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 9.08 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--smart365-11-s10420--11720809

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Pickup points | 13.07.2026 | 1.99 EUR |
| Courier delivery to door | 13.07.2026 | 4.99 EUR |

## Summary description

Step drill bit Smart365, HSS construction with a 4–20 mm cutting range. Designed for drilling progressively larger holes in sheet materials and thin-walled metal, this step bit offers multiple diameters in one tool for efficient deburring and enlargement of pre-existing holes. Suited for handheld drills and drill presses in metalworking and electrical installation tasks.

## Long description

Step Drill Bit Smart365 4–20 mm HSS for metal and sheet materials is a single-piece HSS (high-speed steel) step drill designed to cut progressively larger holes in sheet metals and thin-walled metal components. With a stepped cutting profile covering diameters from 4 mm to 20 mm, this tool replaces multiple round drills by allowing one-bit hole enlargement, deburring and chamfering in a single operation. It is compatible with handheld drills and drill presses and is intended for metalworking and electrical installation tasks where accurate, clean holes in thin materials are required.
Advantages
The HSS construction gives the step drill reliable hardness and wear resistance for drilling thin steel, aluminum and other sheet materials. Its stepped geometry reduces the need to change bits when moving between diameters, improving workflow efficiency. The tool produces relatively clean hole edges and helps deburr while enlarging holes, reducing additional finishing. Suitable for use in both handheld and stationary drilling equipment, the bit offers consistent performance for repetitive hole-making tasks.
Suitable for
Drilling and enlarging holes in sheet metal, thin-walled steel and aluminum
Electrical installation work: creating cable and conduit entries in panels and enclosures
Metal fabrication tasks requiring multiple hole sizes without frequent bit changes
Deburring and chamfering of pre-existing holes in thin materials
Key specifications
Material: High-speed steel (HSS)
Cutting range: 4–20 mm (stepped diameters across the bit)
Intended materials: Sheet metal, thin-walled metal, aluminum
Compatible with: Handheld drills and drill presses
Design: Single-piece stepped flute for progressive hole sizing and deburring
How to use
Secure the workpiece and mark the desired center point for the hole. Clamp the step drill in the drill chuck, ensuring it is properly seated and tightened. Start drilling at low speed to position the initial cutting tip, then increase speed as the bit engages the material; maintain steady, even pressure without forcing the tool. Advance until the required step diameter is reached. Withdraw the drill occasionally to clear chips and allow cooling. For thicker or harder materials, use cutting fluid to reduce heat and improve tool life.
Usage recommendations
Use appropriate safety equipment such as safety glasses and gloves. For best results, select a moderate drill speed suitable for the metal type (lower speeds for steel, higher for aluminum), apply cutting fluid when working with steel or stainless materials, and avoid excessive force to prevent workpiece deformation. Inspect the bit regularly for wear and replace when cutting efficiency or hole quality declines.

## FAQ

### How much does the Step Drill Bit Smart365 4–20 mm HSS cost, and is it available for purchase?

The price is 10.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 20 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 08.07.2026 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 Smart365 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 Smart365 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/11720809/67102046_large.webp