# Drill bit set Bosch step HSS 3 pcs 4–30 mm; sizes 4–12, 4–20, 6–30 mm

**URL:** https://aio.lv/en/product--bosch-sm-11-skpl3--11720217
**Data updated:** 2026-03-08 11:23 (EET)
**Category:** Drill Bits
**Manufacturer:** Bosch
**Manufacturer code:** SM-11-SKPL3
**EAN:** 5901769688018
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-20 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--bosch-sm-11-skpl3--11720217

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

Bosch step drill bit set of 3 HSS pieces covering a drilling range up to 30 mm. Includes step bits with ranges 4–12 mm, 4–20 mm and 6–30 mm. Made for drilling holes in sheet metal, thin materials and plastics; suitable for electric drills and drill presses. Compact set for progressive hole enlargement and deburring.

## Long description

Bosch step drill bit set of 3 HSS pieces covers a wide drilling range up to 30 mm and is designed for progressive hole enlargement in sheet metal, thin materials and plastics. The set contains three step bits with ranges 4–12 mm, 4–20 mm and 6–30 mm, enabling versatile use without frequent tool changes. These HSS step bits are suitable for use with electric drills and drill presses and provide efficient cutting and deburring in one operation.
Advantages
The compact 3‑piece set reduces the need to change bits when enlarging holes and saves storage space. High-speed steel construction offers good wear resistance and stable cutting performance on thin metal and plastic. The stepped design enables controlled incremental drilling and integrated deburring, producing cleaner hole edges and reducing finishing work. Compatibility with standard drill chucks makes the bits easy to fit on most drilling machines.
Suitable for
Drilling and enlarging holes in sheet metal and thin steel
Creating holes in plastic panels and composite materials
Workshop and on-site drilling with electric drills or drill presses
Key specifications
Material: High-speed steel (HSS)
Number of pieces: 3
Step ranges: 4–12 mm, 4–20 mm, 6–30 mm
Maximum drilling diameter: 30 mm
Suitable for: Electric drills and drill presses with compatible chucks
Intended materials: Sheet metal, thin materials, plastics
How to use
Select the step bit with the appropriate range for the target hole size, mount it securely in the drill chuck and set the drill to a moderate speed suitable for the material being drilled. Start drilling with light pressure to locate the hole, then increase steady pressure while allowing the bit to cut through progressively larger steps. Withdraw the bit intermittently if necessary to clear chips and reduce heat. After drilling, use the larger steps to deburr the hole edge if required.
Usage recommendations
Use cutting lubricant when working with thicker or harder sheet metal to prolong bit life and improve hole quality. Secure thin workpieces with clamps or a vice to prevent vibration and ensure precise hole placement. Replace the bit if wear causes reduced cutting efficiency or excessive burr formation.

## FAQ

### How much does the Bosch step HSS drill set 3 pcs 4–30 mm cost, and is it available for purchase?

The price is 28.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 37 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 13.07.2026 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 Bosch 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 Bosch 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/11720217/67101482_large.webp