# Drill bit DeWalt DT9521-QZ for rotary hammer, 6.5 mm diameter, 210 mm length, 1 pc

**URL:** https://aio.lv/en/product--dewalt-dt9521-qz--12086462
**Data updated:** 2026-03-13 08:58 (EET)
**Category:** Drill Bits
**Manufacturer:** DeWalt
**Manufacturer code:** DT9521-QZ
**EAN:** 5035048054963
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 12.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 10.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dewalt-dt9521-qz--12086462

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 20.07.2026 | free |
| Pickup points | 23.07.2026 | 1.89 EUR |
| Courier delivery to door | 23.07.2026 | 4.99 EUR |

## Summary description

DeWalt DT9521-QZ single drill bit designed for use with a rotary hammer. Core specifications: 6.5 mm drill diameter and 210 mm overall length. Supplied as one piece, suitable for drilling into masonry and concrete when used with an appropriate hammer drill. Practical for renovation, installation of anchors and through-holes in building work.

## Long description

DeWalt DT9521-QZ rotary hammer drill bit, 6.5 mm diameter and 210 mm overall length, supplied as a single piece for professional and DIY masonry work. Designed for SDS‑Plus rotary hammers, this concrete drill bit features a four‑cutter carbide head and a four‑flute spiral that accelerates drilling and improves evacuation of dust and debris. The hardened steel body and 140° tip profile provide reliable penetration and extended service life when drilling into concrete, brick and other masonry materials.
Advantages
The combination of a solid two‑cutter carbide head with two additional cutting tips ensures fast, efficient drilling in hard materials and consistent hole quality. The four‑flute spiral removes material quickly to maintain drilling speed and reduce heat build‑up. A hardened steel shank increases resistance to bending and breakage, while the 140° tip geometry improves initial penetration and prolongs tool life. Engineered for SDS‑Plus systems, the bit fits most common rotary hammers for straightforward installation and secure retention.
Suitable for
 Drilling through concrete for anchor installation
 Creating through‑holes in brick and masonry
 Renovation and construction site drilling tasks
 Light to medium duty professional and DIY applications with SDS‑Plus rotary hammers
Key specifications
 Drill diameter: 6.5 mm
 Overall length: 210 mm
 Shank type: SDS‑Plus compatible
 Tip design: four‑cutter carbide head with 140° profile
 Body material: hardened steel with four‑flute spiral
 Quantity: 1 piece
How to use
Insert the DeWalt DT9521‑QZ drill bit into the SDS‑Plus chuck of a compatible rotary hammer and secure according to the tool manufacturer's instructions. Use hammer drilling mode for concrete and masonry; apply steady, even pressure without forcing the bit. Retract periodically to clear dust, or use compressed air or a dust extraction system to maintain visibility and prevent overheating. Match drilling speed and hammer settings to the material hardness and bit diameter to optimize performance and service life.
Usage recommendations
Wear appropriate personal protective equipment including eye, hearing and respiratory protection when drilling. For best results in reinforced concrete, pre‑locate reinforcement to avoid contact with rebar. Replace the bit when cutting performance declines or when the carbide tips show visible wear.

## Specifications

| Feature | Value |
|---|---|
| Length | 210 mm |
| Proper use | Rotary hammer |
| Working length | 150 mm |
| Drill bit diameter | 6.5 mm |
| Shank shape | SDS Plus |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the DeWalt DT9521-QZ drill bit 6.5 mm 210 mm cost, and is it available for purchase?

The price is 12.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 20.07.2026 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

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