# Drill bit Dedra WPQ1221 — 12 mm diameter, for concrete, brick, stone, aerated concrete, 135° point

**URL:** https://aio.lv/en/product--dedra-wpq1221--11719776
**Data updated:** 2026-03-08 11:22 (EET)
**Category:** Drill Bits
**Manufacturer:** Dedra
**Manufacturer code:** WPQ1221
**EAN:** 5902628982629
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dedra-wpq1221--11719776

## 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

Dedra WPQ1221 drill bit, 12 mm diameter, designed for drilling concrete, brick, natural stone and aerated concrete. Single-piece set with a 135° point angle for improved centering and reduced walking. Suited for rotary and hammer drills when creating holes for anchors, dowels and electrical or plumbing installations in masonry and stone.

## Long description

Dedra WPQ1221 — 12 mm drill bit designed for use in concrete, brick, natural stone and aerated concrete. This single-piece masonry bit features a 135° point to improve centring and reduce walking at the start of drilling. It is suitable for use with both rotary and hammer drills when creating holes for anchors, dowels and service installations in masonry and stone.
Advantages
The 135° point angle provides stable bite and improved centring, reducing the need for pilot marks. A single-piece construction increases bit resilience under hammer action and minimizes the risk of breakage at the connection. The 12 mm diameter is a common size for dowels and anchor screws, making the bit practical for a range of fastening tasks in masonry. The geometry and carbide tip (typical for masonry bits of this type) ensure efficient material removal and longer service life when used correctly.
Suitable for
 Drilling anchor and dowel holes in concrete and brick
 Creating openings for electrical boxes and conduit in masonry
 Preparatory holes for plumbing fixtures in stone and aerated concrete
Key specifications
 Drill bit diameter: 12 mm
 Point angle: 135° for improved centring
 Compatible materials: concrete, brick, natural stone, aerated concrete
 Single-piece construction for hammer drilling
 Intended use: rotary and hammer drills
 Quantity: 1 piece
How to use
Secure the workpiece or mark the drilling location and fit the Dedra WPQ1221 into the drill chuck according to the drill manufacturer's instructions. For best results in masonry, use a hammer drill mode and apply steady pressure while allowing the bit to do the cutting. Start at low speed to establish the hole, then increase speed as the bit engages. Withdraw periodically to clear dust from the hole. Use appropriate personal protective equipment including safety glasses, hearing protection and a dust mask.
Usage recommendations
Use with compatible anchors and dowels sized for a 12 mm hole. Avoid excessive sideways force and overheating; if the bit becomes hot, reduce speed and allow it to cool. For reinforced concrete, verify reinforcement location before drilling and consider using a bit designed specifically for rebar contact if needed.

## Specifications

| Feature | Value |
|---|---|
| Suitable for materials | Concrete, Brick, Stone, Aerated concrete |
| Drill bit diameter | 12 mm |
| Point angle | 135 ° |
| Number of drill bits | 1 pc(s) |

## FAQ

### How much does the Drill bit Dedra WPQ1221 12 mm cost, and is it available for purchase?

The price is 7.99 € (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 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 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/11719776/67194820_large.webp