# Step drill for metal Dedra WMST0430, cutting range 4–30 mm, HSS, single-flute

**URL:** https://aio.lv/en/product--dedra-wmst0430--10904293
**Data updated:** 2026-03-07 18:09 (EET)
**Category:** Drill Bits
**Manufacturer:** Dedra
**Manufacturer code:** WMST0430
**EAN:** 5902628922595
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 28.49 €
**Prices and availability valid until:** 2026-07-15 23:59
**Price without VAT (21%):** 23.55 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dedra-wmst0430--10904293

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 07.07.2026 | free |
| Pickup points | 10.07.2026 | 1.99 EUR |
| Courier delivery to door | 10.07.2026 | 8.49 EUR |

## Summary description

Step drill for metal Dedra WMST0430 provides progressive hole sizes from 4 to 30 mm in a single tool. Constructed from high-speed steel (HSS) with a single-flute design, it is intended for cutting and enlarging holes in sheet metal, thin plates and non-ferrous materials. Suitable for use with handheld drills or drill presses for electrical, HVAC and metalworking tasks.

## Long description

Step drill for metal Dedra WMST0430 provides a continuous range of hole sizes from 4 to 30 mm in a single cutting tool. Made from high-speed steel (HSS) with a single-flute geometry, this step drill is designed to cut and enlarge holes in sheet metal, thin plates and non-ferrous materials. It can be used with handheld drills or drill presses for electrical, HVAC and general metalworking tasks, offering progressive drilling without the need to change bits.
Advantages
The single-flute HSS design delivers efficient chip evacuation and reduced heat buildup during drilling, which helps preserve cutting performance and extend tool life. The stepped profile eliminates repeated bit changes by combining multiple diameters into one tool, improving jobsite efficiency. Compact and straightforward to use, the step drill produces clean, round holes with gradual diameter increases for controlled material removal.
Suitable for
 Drilling and enlarging holes in sheet metal and thin steel plates
 Creating cable and conduit openings for electrical and HVAC installations
 Working with non-ferrous materials such as aluminium and brass
 Use with handheld drills or bench drill presses for maintenance and light fabrication
Key specifications
 Cutting diameter range: 4–30 mm in stepped increments
 Material: high-speed steel (HSS)
 Flute type: single-flute geometry for efficient chip removal
 Intended material: sheet metal, thin plates, non-ferrous metals
 Suitable mounting: straight shank for standard drill chucks
How to use
Mark the centre of the hole and secure the workpiece to prevent movement. Use a pilot punch or center drill if necessary to reduce walking on thin sheets. Insert the step drill into the drill chuck and tighten it firmly. Start drilling at low to moderate speed, applying steady pressure; increase speed slightly as the diameter grows if the drill and material allow. Withdraw the drill periodically to clear chips and avoid overheating. For best results on thin metal, support the workpiece close to the cutting area.
Usage recommendations
Use cutting oil or lubricant when drilling thicker or harder metals to improve finish and extend tool life. Avoid excessive feed pressure and high speeds that can cause chatter or premature wear. For precision hole sizing, stop at the step corresponding to the required diameter; for smoother edges, deburr after drilling.

## FAQ

### How much does the Step drill for metal Dedra WMST0430 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 — 400 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 07.07.2026 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 Dedra 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 Dedra 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/10904293/68540555_large.webp