# Drill bit DeWalt DT8921-QZ for rotary hammer, 7 mm x 210 mm, 1 pc

**URL:** https://aio.lv/en/product--dewalt-dt8921-qz--11718505
**Data updated:** 2026-03-08 11:20 (EET)
**Category:** Drill Bits
**Manufacturer:** DeWalt
**Manufacturer code:** DT8921-QZ
**EAN:** 5035048077825
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dewalt-dt8921-qz--11718505

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

DeWalt DT8921-QZ 7 mm x 210 mm drill bit designed for use with rotary hammers. Single-piece set with a 7 mm diameter and 210 mm length, suitable for drilling into masonry and concrete when used with compatible hammer action. Provides a dedicated replacement or spare bit for construction, renovation, and installation tasks.

## Long description

DeWalt DT8921-QZ 7 mm x 210 mm drill bit is designed for use with rotary hammers and SDS Plus chucks. This single-piece bit features a solid carbide tip with four cutting faces and a four-flute helix to optimise chip evacuation and reduce the chance of jamming when encountering rebar. With a 7 mm diameter and 210 mm overall length, it is sized for creating plug and anchor holes in masonry and concrete during construction, renovation, and installation work.
Advantages
The solid piece carbide tip and body are joined using a robust brazing/welding technique that creates a durable bond for long service life under hammer action. The four cutting faces reduce vibration and improve cutting stability, while the four-flute helix enhances debris removal for faster, cleaner drilling. The SDS Plus shank ensures secure tool engagement and quick bit changes.
Suitable for
Drilling anchor and plug holes in concrete
Creating openings in masonry and natural stone
Renovation and installation work requiring repetitive hammer drilling
Tasks where rebar may be encountered and jamming must be minimised
Key specifications
Drill diameter: 7 mm
Overall length: 210 mm
Shank type: SDS Plus
Tip material: solid carbide with four cutting faces
Flute design: four-flute helix for improved debris removal
Suitable materials: concrete, masonry, stone
Package quantity: 1 piece
How to use
Fit the bit into an SDS Plus rotary hammer by inserting and locking the shank according to the tool manufacturer’s instructions. Mark the drilling position and start drilling at low speed to establish the hole, then apply steady hammering force and maintain alignment. Withdraw the bit periodically to clear debris if drilling deep holes. Use appropriate personal protective equipment such as safety goggles, dust mask, and hearing protection when operating the rotary hammer.
Usage recommendations
For best results, use the bit with rotary hammers that support SDS Plus shanks and select a drill mode with hammer action suitable for concrete. Maintain moderate feed pressure to allow the carbide tip to cut effectively and avoid excessive side load. Replace the bit when wear on the cutting faces or significant loss of drilling performance is observed.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Stainless steel |
| Length | 210 mm |
| Proper use | Rotary hammer |
| Working length | 150 mm |
| Suitable for materials | Concrete, Stone |
| Drill bit diameter | 7 mm |
| Shank shape | SDS Plus |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the DeWalt DT8921-QZ drill bit 7x210 mm cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 2 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 15.07.2026 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/11718505/67197612_large.webp