# Countersink Abraboro HSS-G AB91030104, 2.5–10.4 mm cutting range, 50 mm length

**URL:** https://aio.lv/en/product--abraboro-ab91030104--12394878
**Data updated:** 2026-04-26 22:22 (EEST)
**Category:** Drill Bits
**Manufacturer:** Abraboro
**Manufacturer code:** AB91030104
**EAN:** 5999082006251
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Abraboro HSS-G countersink AB91030104 is a high-speed steel cutting tool with a 2.5–10.4 mm cutting range and 50 mm length. Designed for creating chamfers and deburring holes in metal and other materials, it offers robust HSS-G construction for durability and precision in drilling and finishing operations. Suitable for workshop and industrial use where accurate countersinking is required.

## Long description

Abraboro HSS-G AB91030104 is a high-speed steel countersink with a cutting range from 2.5 to 10.4 mm and an overall length of 50 mm. The tool is intended for creating chamfers and removing burrs from drilled holes in metal and a variety of other materials. Its HSS-G (high-speed steel, ground) construction provides wear resistance and stable cutting performance for workshop and industrial drilling and finishing tasks.
Advantages
The Abraboro HSS-G countersink offers precise and consistent chamfering across its 2.5–10.4 mm cutting range. Ground high-speed steel construction ensures good edge retention and resistance to heat during continuous use. The 50 mm overall length gives sufficient reach for standard workpieces while maintaining rigidity to minimise wobble and deflection. The tool is compatible with common drill chucks and machining setups, enabling quick changeover and reliable results in repeated operations.
Suitable for
 Chamfering drilled holes in steel, stainless steel, aluminium, and non-ferrous metals
 Deburring edges after drilling or machining
 Preparing countersunk screw seats and fastener holes
 General workshop and light industrial finishing tasks
When it may not be suitable
This countersink is designed primarily for metalworking and general-purpose finishing; it may be less effective on very hard exotic alloys or hardened steels where specialised carbide countersinks are recommended. It is also not intended for heavy material removal or milling operations — its geometry and material are optimised for chamfering and deburring, not for bulk cutting.
Key specifications
 Material: high-speed steel, ground (HSS-G)
 Cutting range (diameter): 2.5–10.4 mm
 Overall length: 50 mm
 Typical applications: chamfering, deburring, countersinking
 Compatibility: standard drill chucks and holders
How to use
Mount the Abraboro countersink securely in a compatible drill chuck or holder, ensuring concentric alignment. Select an appropriate spindle speed and feed rate for the workpiece material — lower speeds for harder metals and higher speeds for softer materials. Engage the tool with light, steady pressure to create the chamfer or remove burrs; avoid excessive force which can reduce tool life or cause chatter. For best finish, make a single smooth pass or two light passes rather than aggressive cutting. Apply cutting fluid when working with steels to reduce heat and extend tool life.
What to consider before purchase
 Verify the 2.5–10.4 mm cutting range matches the hole/countersink size you require
 Confirm compatibility with your drill chuck or holder and required reach (50 mm overall length)
 Consider material to be machined — HSS-G suits general metals; use carbide for very hard alloys
 Plan for appropriate cutting speeds and coolant use for optimal tool life
Usage recommendations
For precise chamfers and clean deburring, run the tool at speeds and feeds matched to the workpiece material, use light steady pressure, and employ cutting fluid on steels. Store the countersink in a protective sleeve or tool case to preserve the ground cutting edges between uses.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 Abraboro 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 Abraboro 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

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