# Spiral cutting drill bit DeWalt DT70786-QZ compatible with DT70779T-QZ

**URL:** https://aio.lv/en/product--dewalt-dt70786-qz--11876814
**Data updated:** 2026-03-09 20:41 (EET)
**Category:** Drill Bits
**Manufacturer:** DeWalt
**Manufacturer code:** DT70786-QZ
**EAN:** 5054905321994
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 18.49 €
**Prices and availability valid until:** 2026-07-24 23:59
**Price without VAT (21%):** 15.28 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dewalt-dt70786-qz--11876814

## 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

DeWalt DT70786-QZ spiral cutting drill bit designed for drilling tasks. This replacement/consumable bit is a spiral cutting type and is specified for use with compatible models such as DT70779T-QZ. Intended for general drilling applications where a spiral cutting geometry is required; suitable as a spare part for compatible DeWalt drill systems.

## Long description

The DeWalt DT70786-QZ spiral cutting drill bit is a replacement consumable designed for general drilling applications where a spiral cutting geometry is required. Manufactured to be compatible with DeWalt compatible drill systems such as models that accept the DT70779T-QZ series, this bit serves as a spare part to restore cutting performance and maintain drilling efficiency. The tool is intended for routine drilling tasks in materials appropriate for spiral cutting geometry and fits into systems that use the matching shank and mounting configuration.
Advantages
This spiral cutting drill bit provides consistent chip evacuation due to its spiral flute design, which helps maintain cleaner holes and steady drilling progress. As a replacement part, it enables fast restoration of tool functionality without the need to replace the entire drill head. The bit is manufactured to DeWalt-compatible specifications, ensuring reliable fit and alignment with drills designed for the DT70779T-QZ family.
Suitable for
Routine drilling tasks in wood and similar soft-to-medium materials where spiral cutting action is appropriate
Replacement of worn or damaged spiral cutting bits in compatible DeWalt drill systems
Workshops and tradespeople requiring spare consumable bits for on-site repairs
Key specifications
Type: Spiral cutting drill bit
Application: General drilling with spiral cutting geometry
Compatibility: Designed for systems compatible with DT70779T-QZ series
Usage category: Replacement/consumable bit for drill systems
How to use
Select the DeWalt DT70786-QZ spiral cutting bit when a spiral flute profile is required for the material and task. Ensure the drill is powered off and securely clamped before replacing the bit. Insert the bit into the compatible chuck or mounting interface, tighten according to the drill manufacturer's instructions, and verify correct alignment. Begin drilling at a controlled speed suitable for the target material, applying steady pressure and allowing the spiral flutes to evacuate chips. Inspect the bit periodically for wear and replace when cutting edges become dull or flutes are damaged.
Usage recommendations
Use protective equipment such as safety glasses and gloves. Match drilling speed and feed to the material, avoid excessive side load, and replace the bit when performance decreases to maintain quality and safety.

## Specifications

| Feature | Value |
|---|---|
| Compatibility | DT70779T-QZ |
| Proper use | Drill |
| Drill bit type | Spiral cutting drill bit |

## FAQ

### How much does the DeWalt DT70786-QZ spiral cutting drill bit cost, and is it available for purchase?

The price is 18.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 27 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 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

## Image

https://aio.lv/img/cache/product/11876814/67429476_large.webp