# Masonry drill bit DeWalt DT9447-QZ 42 mm for rotary hammer, 1 pc

**URL:** https://aio.lv/en/product--dewalt-dt9447-qz--11721031
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** DeWalt
**Manufacturer code:** DT9447-QZ
**EAN:** 5035048060148
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 159.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 132.22 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--dewalt-dt9447-qz--11721031

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.07.2026 | free |
| Pickup points | 16.07.2026 | 1.89 EUR |
| Courier delivery to door | 16.07.2026 | 4.99 EUR |

## Summary description

DeWalt DT9447-QZ masonry drill bit, 42 mm diameter, designed for use with rotary hammer tools. Supplied as a single piece, this drill bit is intended for drilling into masonry materials. Suitable for professional and DIY applications where a larger-diameter masonry hole is required; compatible with rotary hammer operation and standard chucks/holders meant for masonry bits.

## Long description

The DeWalt DT9447-QZ masonry drill bit is a 42 mm diameter bit designed for use with rotary hammer tools. Supplied as a single piece, this SDS Max shank drill bit is made for drilling holes in masonry materials including concrete, brick and stone. Its head design and flute geometry are intended to provide efficient debris evacuation and sustained drilling performance for larger-diameter anchor, plug or clearance holes.
Advantages
The bit features a solid two-cutter carbide tip flanked by two individual cutting tips to increase cutting efficiency and maintain drilling speed. A four-flute helix helps remove dust and debris from the hole, supporting steady progress during drilling. The shank and body are hardened to improve strength and reduce the risk of breakage, while the optimized mounting shank aims to provide secure grip and effective power transmission when used in compatible rotary hammers.
Suitable for
Drilling larger-diameter anchor or plug holes in concrete
Creating clearance holes in brick or block work
Drilling into natural stone and masonry for fixing and anchoring
Key specifications
Drill bit diameter: 42 mm
Overall length: 570 mm
Shank type: SDS Max
Tip: solid carbide multi-cutter head (two-cutter with two flanking cutting tips)
Flute design: four-flute helix for debris removal
Suitable materials: concrete, brick, block work, masonry, stone
Pack quantity: 1 piece
How to use
Install the SDS Max shank securely in a compatible rotary hammer according to the tool manufacturer’s instructions. Position the drill bit on the marked drilling point and apply steady pressure while operating the hammer function. Use appropriate drilling speed and intermittent withdrawal to clear dust and prevent overheating if drilling deep holes. Always allow the tool and bit to cool when performing multiple successive holes.
Usage recommendations
Wear appropriate personal protective equipment including safety glasses, hearing protection and dust mask. Use a vacuum or dust extraction system where possible to reduce airborne dust. Select an appropriate anchor or plug size for the 42 mm hole and inspect the bit for wear or damage before use.

## Specifications

| Feature | Value |
|---|---|
| Product colour | Stainless steel |
| Length | 570 mm |
| Proper use | Rotary hammer |
| Working length | 450 mm |
| Suitable for materials | Brick, Concrete, Masonry, Stone |
| Drill bit diameter | 42 mm |
| Shank shape | SDS Max |
| Number of drill bits | 1 pc(s) |
| Drill bit type | Masonry drill bit |

## FAQ

### How much does the Masonry drill bit DeWalt DT9447-QZ 42 mm cost, and is it available for purchase?

The price is 159.99 € (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 13.07.2026 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 Masonry drill bit DeWalt DT9447-QZ 42 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

## Image

https://aio.lv/img/cache/product/11721031/67192497_large.webp