# Proma drill bit set model RB77849, 15-piece, for stone

**URL:** https://aio.lv/en/product--proma-rb77849--11721448
**Data updated:** 2026-03-08 11:24 (EET)
**Category:** Drill Bits
**Manufacturer:** Proma
**Manufacturer code:** RB77849
**EAN:** 4040849778490
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 13.49 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 11.15 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--proma-rb77849--11721448

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

Proma RB77849 is a 15-piece drill bit set designed for drilling into stone. The set contains 15 drill bits suitable for use with drills, intended specifically for stone materials. Pack dimensions: 150 × 105 × 46 mm. The set is practical for masonry, tile and stone installation, repair and renovation tasks.

## Long description

Proma RB77849 is a 15-piece drill bit set designed specifically for drilling into stone. The set includes a range of masonry drill bits with a centring tip and round shank, supplied in a compact case with individually marked slots so the required diameter is easy to identify and retrieve. Pack dimensions are 150 × 105 × 46 mm, making the set convenient to store and carry for on-site assembly, repair and renovation tasks.
Advantages
The centring tip ensures accurate positioning and reduces wandering when starting a hole in stone surfaces. The round shank design allows secure insertion into the chuck of a drill or hammer drill. The compact case with labelled slots keeps drill bits organised, speeding up work and reducing time spent searching for the correct diameter. The assortment of diameters covers common requirements for masonry fixings and general stonework.
Suitable for
 Drilling through and blind holes in stone
 Installing anchors, dowels and screws in masonry
 Tile and stone installation, repair and renovation
 Furniture assembly that requires masonry fixings
Key specifications
 Quantity: 15 pieces
 Material / application: masonry drill bits for stone
 Shank type: round shank for drill chuck compatibility
 Tip design: centring tip for precise start and guidance
 Diameter assortment: 3 × 3 mm, 2 × 4 mm, 3 × 5 mm, 1 × 6 mm, 3 × 8 mm, 2 × 10 mm
 Pack dimensions: 150 × 105 × 46 mm
How to use
Select the drill bit with the appropriate diameter for the anchor or screw to be used and insert the round shank securely into the drill or hammer drill chuck. Position the centring tip on the marked drilling point and start drilling at low speed to establish the hole without wandering; increase speed and apply steady pressure suitable for the stone type. Clear dust from the hole periodically to maintain cutting efficiency and prevent overheating. Use drilling accessories and fixings sized to match the drilled diameter.
Usage recommendations
Wear appropriate personal protective equipment such as safety glasses and a dust mask when drilling stone. For harder stone types or thicker holes, use a hammer drill setting if available and allow the bit to cool between extended runs. Store the bits in the supplied case with the marked slots to preserve tip geometry and ensure quick selection on future jobs.

## Specifications

| Feature | Value |
|---|---|
| Proper use | Drill |
| Package depth | 46 mm |
| Package height | 150 mm |
| Package width | 105 mm |
| Carrying case | Yes |
| Suitable for materials | Stone |
| Number of drill bits | 15 pc(s) |
| Drill bit type | Drill bit set |

## FAQ

### How much does the Proma RB77849 drill bit set, 15 pcs cost, and is it available for purchase?

The price is 13.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 06.07.2026 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 Proma 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 Proma 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/11721448/67191309_large.webp