# Step drill bit 5–35 mm DT90247 — hole saw bit for sheet metal and plastics

**URL:** https://aio.lv/en/product--dewalt-dt90247--10886755
**Data updated:** 2026-04-03 16:16 (EEST)
**Category:** Drill Bits
**Manufacturer:** DeWalt
**Manufacturer code:** DT90247
**EAN:** 5054905245429
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 75.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 62.39 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dewalt-dt90247--10886755

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.89 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Step drill bit 5–35 mm DT90247 is a conical stepped cutting tool designed to drill and enlarge round holes in thin materials. It covers hole diameters from 5 to 35 mm in incremental steps, suitable for sheet metal, aluminium, plastics and thin laminates. Use with standard drill chucks for electrical, HVAC, automotive and general workshop tasks where multiple hole sizes are required without tool changes.

## Long description

Step drill bit 5–35 mm DT90247 is a conical stepped cutting tool designed to drill and enlarge round holes in thin materials. It covers hole diameters from 5 to 35 mm in incremental steps, allowing a single tool to produce multiple hole sizes without changing bits. The geometry and cutting edges are optimised for clean entry and reduced burr formation when working with sheet metal, aluminium, plastics and thin laminates. The bit fits standard drill chucks and is suitable for tasks in electrical installations, HVAC work, automotive panels and general workshop use where variable hole sizes are needed.
Advantages
The stepped design eliminates the need for multiple drill bits and reduces downtime from tool changes. Incremental step sizes provide controlled drilling and smooth hole enlargement across the 5–35 mm range. The conical profile and sharp cutting edges deliver faster penetration and consistent hole diameters in thin materials, while the single-tool solution simplifies inventory and transport. Compatibility with standard drill chucks ensures easy use with handheld and bench drills.
Suitable for
 Drilling and enlarging holes in sheet metal and aluminium panels
 Creating cable and conduit entry holes in electrical and HVAC installations
 Working with plastics and thin laminates for enclosures and panels
 Automotive bodywork where multiple hole sizes are required
Key specifications
 Hole diameter range: 5–35 mm (incremental steps)
 Conical stepped geometry for progressive drilling
 Suitable materials: sheet metal, aluminium, plastics, thin laminates
 Shank: compatible with standard drill chucks
 Application type: drilling and hole enlargement in thin materials
How to use
Secure the step drill bit in a standard drill chuck ensuring the shank is properly seated and tightened. Clamp the workpiece to prevent movement and mark the hole centre. Start drilling at low speed to create a clean entry point, then increase speed according to material and drill capacity. Advance the bit gradually through each step to reach the required diameter, withdrawing occasionally to clear chips and reduce heat build-up. After drilling, deburr the hole edges if necessary for a clean finish.
Usage recommendations
Use cutting lubricant or light oil when drilling metals to extend tool life and improve surface finish. For plastics and laminates, use lower speeds and steady feed to avoid melting or chipping. Maintain proper clamping and steady drill alignment to achieve accurate, round holes and reduce tool wear.

## FAQ

### How much does the Step drill bit DT90247 5–35 mm cost, and is it available for purchase?

The price is 75.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 13 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 06.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Step drill bit DT90247 5–35 mm be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 DeWalt 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 DeWalt 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