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CrazyDrill Flex

CrazyDrill Flex
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CrazyDrill Flex

Product catalog summary
Introduction
The CrazyDrill Flex is a high-performance solid carbide drill designed for deep hole drilling, capable of reaching depths up to 50 times its diameter. It is particularly advantageous for use in multi-spindle turning centers and transfer machines due to its ability to adjust for alignment errors.
Specifications
The CrazyDrill Flex is made from high-grade carbide and is available in diameters ranging from 0.1 mm to 1.2 mm. It features a standard shank size of 3 mm and can be ordered in diameter increments of 0.05 mm, with finer increments of 0.01 mm available upon request. The drill is engineered for high precision and flexibility, suitable for materials such as steel, cast iron, aluminum, brass, titanium, and copper.
Features
  • Special Drill Tip Geometry: Reduces feed force by 50%, minimizes heat generation, and allows for maximum drilling speed.
  • Cutting Edge Protection: Prevents breakage of cutting edges.
  • Chip Flute Geometry: Produces short chips for efficient drilling.
  • Flexible Centerpiece: Compensates for alignment errors, enabling deep drilling without breakage.
  • Standard Shank: Ensures no run-out with a robust 3 mm shank.
Drilling Process
The process involves centering or pilot drilling using the CrazyDrill Flexpilot up to 3 times the diameter, followed by deep hole drilling. Initial drilling can reach up to 7 times the diameter in one go, with further depths requiring pecking in steps of 0.5 to 1 times the diameter. The CrazyDrill Flex is 8–10 times faster than traditional single flute gun-drills and micro-electro-erosion methods.
Manufacturing Program
The drill is available from stock with high centering precision and reliability, supporting a wide range of applications.
Conclusion
The CrazyDrill Flex combines the flexibility of HSS drills with the durability of solid carbide drills, offering a reliable solution for precise and efficient deep hole drilling.
Procedures
The drilling process follows DIN 66025 / PAL standards, utilizing the G83 deep drilling cycle with pecking. An example is provided for drilling in Titanium Grade 1 using the CrazyDrill Flex 50 x Ø.
Standards and Certifications
Mikron Tool is certified under ISO 9001:2008 for quality, ISO 14001:2004 for environmental management, and OHSAS 18001:2007 for occupational health and safety management.
Recommendations
For the CrazyDrill Flex 50 x Ø with internal cooling, a minimum pressure of 10 bar at the spindle is recommended. Specific cutting parameters are provided for various materials, including titanium alloys and copper.
Contact Information
Contact details are provided for Mikron Tool's headquarters in Switzerland, production facilities in Germany, and sales offices in North and South America.
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Catalog excerpts

CrazyDrill Flex-1

Flexible carbide drill up to 50 x d CftAZYDft/EE

 Open the catalog to page 1
CrazyDrill Flex-2

Flexible like HSS, long tool life of a solid carbide drill diameter range 0.1 to 1.2 mm CrazyDrill Flex The new micro drill CrazyDrill Flex is a flexible solid carbide drill, flexible and for deep hole drilling up to 50 x Ø. Flexible carbide drill: CrazyDrill Flex, due to its high grade carbide and particular geometry is very precise and flexible. This is advantageous when alignment errors occur, especially in applications with multi-spindle turning centers or transfer machines. CrazyDrill Flex is able to compensate effortlessly 40% of its diameter thanks to its flexible centerpart and doesn’t...

 Open the catalog to page 2
CrazyDrill Flex-3

All new: The drill, the drilling process, the drilling depth up to 50 x Ø Cleverly devised from tip to toe 1. Special drill tip geometry: - Feed force reduced 50% - Less heat - Maximum drilling speed 2. Special cutting edge protection: - Prevent breakage of cutting edges 3. Perfect chip flute geometry: - Creates short chips 4. Flexible centerpiece: - No breakage due to alignment errors - Achieve drilling depth 50 x Ø 5. Robust standard shank of 3mm: - No run-out The drilling process to drill quickly and dynamically 3xø 1. Centering / Pilot drilling with CrazyDrill Flexpilot: - 2–3 x Ø, no diameter...

 Open the catalog to page 3
CrazyDrill Flex-4

Right from the start precise drilling – with CrazyDrill Flexpilot The drilling concept from Mikron Tool CrazyDrill Flexpilot is a high precision Pilot Drill and perfectly matched to the drilling program CrazyDrill Flex. Execution: • Carbide alloy with 3 mm cylindrical shaft, uncoated • New, special CrazyDrill Flex drilling geometry Manufacturing program: CrazyDrill Flex is offered from stock for Ø 0.1 to 1.2 mm, with diameter increments of 0.05 mm. Diameter increments of 0.01 mm are available on request. Step 1: Centering and pilot drilling up to 3 x Ø with CrazyDrill Flexpilot Particular characteristics:...

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CrazyDrill Flex-5

CrazyDrill Flexpilot Steel < Article in stock ∆ Price and delivery term upon request, minimum quantity 5 pcs. < from stock ∆ upon request < from stock ∆ upon request

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CrazyDrill Flex-6

Drilling program – for flexible and / or deep hole drilling Maximum drilling depth 20 x Ø < from stock ∆ upon request < from stock ∆ upon request Maximum drilling depth 20 x Ø Article in stock Price and delivery term upon request, minimum quantity 5 pcs.

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CrazyDrill Flex-7

Maximum drilling depth 30 x ø < from stock ∆ upon request < from stock ∆ upon request Maximum drilling depth 30 x ø Article in stock Price and delivery term upon request, minimum quantity 5 pcs.

 Open the catalog to page 7
CrazyDrill Flex-8

Drilling with CrazyDrill Flex - Pilot drilling: First drilling step Q^: Further drilling steps Q2 - Qx: 2-3x0 with First drilling step up to Drilling depths over 7 x 0 CrazyDrill Flexpilot 7 x 0 in one single step with requires regular pecking CrazyDrill Flex, followed with with steps of 0,5 - 1 x 0 additional pecking. Comment: CrazyDrill Flex must be with drawn completely from the hole in order to cool, lubricate and remove chips with the external coolant. Figure: Drilling process CrazyDrill Flex Technical information: Toolholder equipment CrazyDrill Flex requires high precision clamping, with...

 Open the catalog to page 8
CrazyDrill Flex-9

Fast, precise and reliable drilling – with Mikron Tool cutting parameters Material group Cutting parameter for CrazyDrill Flex Steel: Pilot, 20 x ø and 30 x ø Cutting speed vc [m/min] Examples Feed f and stroke Q1 resp. Q2 - Qx in relation to drill diameter ø 0.1 Q1 Q2 - Qx [mm] Alloy steels, 42CrMo4, 100Cr6, short-chipping 90MnCrV8 Rm < 900 N / mm2 Alloy, high-alloy Tool Steels, short-chipping Rm < 1200 N / mm2 Cast iron Aluminum alloy wrought Aluminum alloy Cast Brass, Beryllium brass <----------------------------------see CrazyDrill Flex Titanium--------------------------------------------->...

 Open the catalog to page 9
CrazyDrill Flex-10

Complete success thanks to integrated cooling Perfect working condition: Integrated in the shank CrazyDrill Flex 50 x ø are 3 lubrication channels. These channels enable a perfect cooling as well as a precise removal of chips. A minimum pressure of 10 bar at the spindle is sufcient to drill 50 x ø reliably.

 Open the catalog to page 10
CrazyDrill Flex-11

Maximum drilling depth 50 x ø < from stock ∆ upon request < from stock ∆ upon request Maximum drilling depth 50 x ø Item Nr. Deep hole drilling up to 50 x ø with integrated cooling < Article in stock ∆ Price and delivery term upon request, minimum quantity 5 pcs.

 Open the catalog to page 11
CrazyDrill Flex-12

Micro drilling - with maximum of precision The micro drill CrazyDrill Flex has a double functionality. Straight holes are achieved because of the stable middle part of the tool (axial direction) and an ingenious polished tip section which reduces the drilling force up to 50%. Technical information: Toolholder equipment CrazyDrill Flex requires high precision clamping, with minimal run-out and secure friction-type locking. Cooling lubricant For best results Mikron Tool recommends the use of cutting oil as lubricant. The use of water based coolant with high pressure additives is also acceptable...

 Open the catalog to page 12
CrazyDrill Flex-13

Fast, precise and reliable drilling – with Mikron Tool cutting parameters Material group Cutting paramtere for CrazyDrill Flex Steel: 50 x ø Cutting speed vc [m/min] Feed f and stroke Q1 resp. Q2 - Qx in relation to drill diameter ø 0.3 Non-alloy steels, long-chipping Rm < 700 N / mm2 Alloy steels, 42CrMo4, 100Cr6, short-chipping 90MnCrV8 Rm < 900 N / mm2 Cast iron Aluminum alloy Cast Brass, Beryllium brass Aluminum alloy wrought Alloy, high-alloy Tool Steels, short-chipping Rm < 1200 N / mm2 Non-alloy steels, long-chipping Rm < 500 N / mm2 <----------------------------------see CrazyDrill Flex...

 Open the catalog to page 13
CrazyDrill Flex-14

Efficient drilling of Titanium and other tough materials – CrazyDrill Flex Titanium The Engineers of Mikron Tool developed a special geometry for CrazyDrill Flex Titanium to machine tough and long chipping materials. Due to that, drilling applications in the swatch-, jewelry-, medical- as well as in the aerospace industry are done faster and more reliably.

 Open the catalog to page 14

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.