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header-product Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm
7.49 €

Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm

Format Twist Drill Bit HSS-Co 5.1 mm Photo 1

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Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm

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Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm

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Short description

High-performance Format twist drill bit made of HSS-Co with a cylindrical shank and a 5.1 mm diameter. Designed for precise and efficient drilling in demanding metals and alloys, ensuring durability and clean hole formation for professional and industrial applications.
Available for order: 50 pcs.
Warranty: 2 Years
SKU: 12737611
Manufacturer: Format
free shipment

Cheapest delivery:

Unisend LV

Pick-up points

Unisend LV

Cost

1.99 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
30.11.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
03.12.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Unisend LV / Venipak Pickup LV / Venipak Locker LV / DPD Paku skapis / Omniva LV / Latvijas Pasts pakomāts / Latvijas Pasts nodaļa
03.12.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Product information

Description

The Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm is a high-performance drilling tool engineered for precision and reliability in professional environments. Featuring a 5.1 mm diameter and a sturdy cylindrical shank, this drill bit is manufactured from high-speed steel alloyed with cobalt, providing exceptional hardness and heat resistance. It is specifically designed to tackle demanding metals and tough alloys, ensuring clean hole formation and long-lasting tool life under continuous operational loads.

Advantages

The incorporation of cobalt in the HSS material significantly enhances thermal endurance and wear resistance, allowing the drill bit to maintain its cutting edge even during high-speed and high-temperature applications. The cylindrical shank ensures secure and universal compatibility with standard drill chucks, reducing slippage and improving drilling stability. Its precision-ground geometry facilitates effortless chip evacuation and accurate centering, minimizing the need for center punching and delivering smooth, burr-free results.

Suitable for

  • Drilling stainless steel and acid-resistant alloys
  • Processing high-tensile steels and cast iron
  • Industrial manufacturing and metal fabrication tasks
  • Automotive repair and mechanical maintenance work

When it may not be suitable

This drill bit is not optimized for drilling soft materials such as wood, plastics, or aluminum alloys, where specialized geometry is required to prevent clogging. It is also generally unsuited for hammer drilling applications in masonry or concrete.

Key specifications

  • Diameter: 5.1 mm
  • Shank type: Cylindrical
  • Material: HSS-Co (Cobalt-alloyed high-speed steel)
  • Application type: Metal and alloy drilling

How to use

Ensure the drill bit is firmly secured in a compatible chuck before operation. Select an appropriate drilling speed matching the material hardness, utilizing cutting fluid or lubricant to dissipate heat and extend tool life during extended metal-working tasks. Apply steady, moderate axial pressure and keep the drill perpendicular to the workpiece surface to prevent bit deflection or breakage.

What to consider before purchase

  • Verify that the 5.1 mm diameter matches your specific project requirements
  • Confirm that your drilling equipment accommodates a cylindrical shank
  • Check that the material being drilled falls within the capability range of HSS-Co tools
Usage recommendations: Always wear appropriate personal protective equipment, including safety glasses, and secure the workpiece firmly before commencing any drilling operation.

Description

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Product comparison

Comparing the Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm with similar alternatives from the same brand shows that all considered products belong to a single line of high-performance metal-cutting accessories. They are manufactured from high-speed steel with cobalt content (HSS-Co) and feature cylindrical shanks for secure chuck retention. The main practical difference between them is the diameter of the working part, which determines the hole size, while material composition, heat resistance, and suitability for professional and industrial metalworking remain consistent across all options.

⚙️ Comparison of specifications and design features for the selected metalworking tools.

ParameterFormat 5.1 mmFormat 4.8 mmFormat 2.5 mmFormat 4.5 mmFormat 3.5 mmFormat 4.2 mmPractical significance
MaterialHSS-CoHSS-CoHSS-CoHSS-CoHSS-CoHSS-CoEnsures equally high heat resistance and wear durability across all variants.
Shank typeCylindricalCylindricalCylindricalCylindricalCylindricalStraight / cylindricalGuarantees universal compatibility with standard drill chucks.
Diameter5.1 mm4.8 mm2.5 mm4.5 mm3.5 mm4.2 mmDetermines the resulting hole size for specific fasteners or threading tasks.
ApplicationMetals and alloysMetals and alloysMetals and alloysMetals and alloysMetals and alloysMetals and hard materialsAll models suit professional workshops and industry, differing only in dimensional precision.

◎ Evaluation of use cases and suitable scenarios for each modification.

Use caseRecommended productWhy
Drilling 5.1 mm holes in alloyed and unalloyed steelsFormat Twist Drill Bit HSS-Co Cylindrical 5.1 mmPrecisely matches the required hole dimension for the specific technological task.
Creating 4.8 mm holes for maintenance and production tasksFormat Twist Drill Bit HSS-Co Cylindrical 4.8 mmProvides the necessary diameter while retaining full cobalt alloy performance.
Precise fine work and drilling 2.5 mm holesFormat Twist Drill Bit HSS-Co Cylindrical 2.5mmIdeally suited for working with delicate parts and small fasteners.
Obtaining 4.5 mm holes in metalFormat Twist Drill Bit HSS-Co Cylinder 4.5 mmAllows intermediate-diameter drilling operations with high precision.
Assembly and locksmith work with 3.5 mm holesFormat Twist Drill Bit HSS-Co Cylindrical 3.5 mmOptimal for preparing holes for small-diameter threads and fasteners.
Professional metalworking with a 4.2 mm diameterFormat Spiral Drill Bit HSS-Co Straight Shank 4.2mmA specialized size tailored to specific technical requirements.

The Format Twist Drill Bit HSS-Co Cylindrical 5.1 mm differs from the other presented models strictly by its working diameter, while maintaining the same core HSS-Co standards for heat resistance, strength, and durability. This specific model is best suited when your task requires an exact 5.1 mm hole, whereas the alternative options should be selected solely based on the specific dimension requirements of your workpiece or fasteners.

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Customer reviews

Customer questions

FAQ

How much does the Format Twist Drill Bit HSS-Co 5.1 mm cost, and is it available for purchase?

The price is 7.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 50 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 30.11.2026 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 Format 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 Format 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. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
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