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header-product Format Spiral Drill Bit HSS-Co Cylindrical 11.5 mm
19.49 €

Format Spiral Drill Bit HSS-Co Cylindrical 11.5 mm

Format Twist Drill Bit HSS-Co 11.5 mm Photo 1

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Format Spiral Drill Bit HSS-Co Cylindrical 11.5 mm

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Short description

Precision high-speed steel twist drill bit by Format featuring an 11.5 mm diameter and cobalt alloyed HSS-Co construction for enhanced heat resistance and durability. Designed for drilling demanding materials such as alloyed and unalloyed steel, cast steel, and stainless steel. Features a cylindrical shank for standard chuck compatibility, making it an ideal cutting tool for professional workshop applications, metalworking, and maintenance tasks.
Available for order: 30 pcs.
Warranty: 2 Years
SKU: 12697422
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
09.11.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
12.11.2026 {{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
12.11.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.99 €
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Product information

Description

The Format Spiral Drill Bit HSS-Co Cylindrical 11.5 mm is a precision high-speed steel twist drill bit engineered for demanding professional applications. Featuring an 11.5 mm diameter and a cobalt-alloyed HSS-Co construction, this cutting tool offers enhanced heat resistance and extended durability when working with tough metals. It is specifically designed to provide reliable performance in both alloyed and unalloyed steel, cast steel, and stainless steel.

Advantages

The incorporation of cobalt into the high-speed steel composition significantly improves thermal resistance, allowing the drill bit to maintain its cutting edge even under high friction and elevated temperatures. Its precision grinding ensures accurate hole dimensions and clean finishes, reducing the need for secondary deburring or processing. The robust construction minimizes the risk of breakage during high-load operations, delivering consistent results and high productivity in professional workshop and industrial environments.

Suitable for

  • Drilling alloyed and unalloyed steels
  • Machining stainless steel and cast steel
  • Professional metalworking and fabrication tasks
  • Workshop maintenance and repair operations

When it may not be suitable

This drill bit is not recommended for drilling soft non-ferrous materials like wood, plastic, or aluminum, where high cobalt content and specialized geometry are unnecessary. It is also unsuitable for hand-held drilling tasks requiring flexibility or tools without standard cylindrical chuck compatibility.

Key specifications

  • Diameter: 11.5 mm
  • Material: High-Speed Steel with Cobalt alloy (HSS-Co)
  • Shank type: Cylindrical
  • Application range: Alloyed steel, unalloyed steel, cast steel, stainless steel

How to use

Secure the cylindrical shank firmly into a compatible drill chuck or drill press to ensure stability and prevent slippage during operation. Align the drill bit perpendicularly to the workpiece surface and apply steady, controlled pressure. Use an appropriate cutting fluid or lubricant to dissipate heat effectively, prolong the lifespan of the cutting edge, and ensure optimal chip evacuation, particularly when working with stainless steel and hard alloyed metals.

What to consider before purchase

  • Verify that your drill or drill press chuck is compatible with an 11.5 mm cylindrical shank
  • Ensure your equipment is capable of delivering the appropriate torque and speed for drilling hard metals
  • Confirm the material requirements of your project match the steel and stainless steel capabilities of this cobalt drill bit

Usage recommendations: Always wear appropriate personal protective equipment, including safety glasses and gloves, when performing metal drilling operations. Regularly inspect the cutting edges for wear and apply a suitable cooling lubricant during extended drilling sessions to maximize tool longevity.

Description

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Product comparison

Comparing the Format Spiral Drill Bit HSS-Co Cylindrical 11.5 mm with alternative options from the same Format product line shows that all reviewed items share a common technological foundation: high-strength high-speed steel with cobalt content (HSS-Co) and a standard cylindrical shank. The primary differences between them lie exclusively in the diameter of the working part, which directly determines the size of the created holes and the scale of the metalworking tasks.

⚙️ The table below compares the drill diameter, material, shank type, and intended use for each product.

ParameterFormat Spiral Drill Bit HSS-Co Cylindrical 11.5 mmFormat Twist Drill Bit HSS-Co Cylindrical 4.8 mmFormat Twist Drill Bit HSS-Co Cylindrical 8.5 mmFormat Twist Drill Bit HSS-Co Cylinder 4.5 mmFormat Twist Drill Bit HSS-Co Cylindrical 12 mmPractical conclusion
Diameter11.5 mm4.8 mm8.5 mm4.5 mm12 mmThe diameter size determines the width of the drilled hole for fasteners or workpieces
MaterialHSS-Co (cobalt high-speed steel)HSS-Co (cobalt high-speed steel)HSS-Co (cobalt high-speed steel)HSS-Co (cobalt high-speed steel)HSS-Co (cobalt high-speed steel)All drills provide equally high heat resistance and durability when working with hard metals
ShankCylindricalCylindricalCylindricalCylindricalCylindricalEnsures full compatibility with standard equipment chucks and clamping devices
ApplicationDrilling alloyed and unalloyed steel, stainless steel, and castingPrecision drilling in metals, alloyed and unalloyed steels, and castingPrecision drilling in demanding metal applications, alloyed and stainless steelPrecision drilling in demanding metal applications and alloyed steelsDrilling hard and demanding metalsEach drill is optimized for a specific hole diameter within unified professional tasks

◎ The suitability table below evaluates which drill is best to choose depending on the required hole diameter for specific metalworking tasks.

Use caseRecommended productWhy
Creating medium-sized 11.5 mm holes in alloyed or stainless steelFormat Spiral Drill Bit HSS-Co Cylindrical 11.5 mmBest suited for tasks requiring precise 11.5 mm drilling with enhanced heat resistance
Drilling small holes (4.5 or 4.8 mm) in metalFormat Twist Drill Bit HSS-Co Cylindrical 4.8 mm / Format Twist Drill Bit HSS-Co Cylinder 4.5 mmSmaller diameter is better suited for fine fastening work and small components
Drilling holes with a diameter of 8.5 or 10.2 mmFormat Twist Drill Bit HSS-Co Cylindrical 8.5 mm / Format Twist Drill Bit HSS-Co Cylindrical Shank 10.2 mmProvides intermediate diameter sizes for standard fasteners and components
Creating large 12 mm holes in hard materialsFormat Twist Drill Bit HSS-Co Cylindrical 12 mmMaximum diameter in the lineup for larger assembly and manufacturing tasks
The Format Spiral Drill Bit HSS-Co Cylindrical 11.5 mm differs from alternatives solely in its 11.5 mm diameter while retaining all the benefits of the HSS-Co cobalt alloy, such as heat resistance and durability. This tool is most suitable for professional artisans and workshops that need to produce a hole of precisely this size in hard or stainless steels, whereas alternative models should be chosen only when a different diameter is required.
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Customer reviews

Customer questions

FAQ

How much does the Format Twist Drill Bit HSS-Co 11.5 mm cost, and is it available for purchase?

The price is 19.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 30 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 09.11.2026 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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14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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