Company Contact Information

The company operates headquarters in Tokyo and Toyama, with multiple regional sales offices across Japan. Contact details include telephone and fax numbers for each location. Customer support services cover cutting conditions, tool selection, pricing, and stock inquiries.

Product Overview: AQUA Drill EX FLAT Series

The AQUA Drill EX FLAT series introduces advanced flat drill technology designed to revolutionize traditional drilling. Key innovations include multi-functionality, enhanced heat and wear resistance via Aqua EX coating, and improved hole precision through a double margin design.

• Reduces process time and minimizes burr formation.
• Enables single-step drilling and counter boring on angled surfaces.
• Extends tool life and ensures consistent hole quality.
• Features specialized coatings (AlCrTi lubrication film, TiAl oxidation resistance, wear-resistant film) on high-strength carbide substrates.
• Double margin design enhances hole stability and reduces enlargement.

Applications and Case Studies

Demonstrated applications include hydraulic valve components, steering parts, hydraulic pump parts, heat-resistant alloys, copper cast electronic parts, and precision parts with slant holes. Benefits observed:

• Process shortening by combining end mill and drill operations.
• Reduction of burrs on inner and outer hole surfaces.
• Improved hole roundness and precision on inclined surfaces.
• Capability to drill intersecting holes with reduced back burrs.
• Effective drilling of thin plates and counter boring.

Cutting Conditions and Parameters

Recommended cutting parameters vary by tool diameter and material, including cutting speed (m/min), feed rate (mm/min or mm/rev), hole depth, and cutting fluid type:

• Example: 4mm diameter drill at 23 m/min speed, 70 mm/min feed, 7mm depth with water-soluble cutting oil.
• Example: 3mm diameter drill at 47 m/min speed, 88 mm/min feed, 5mm depth with water-soluble cutting oil.
• Example: 6.5mm diameter drill at 20 m/min speed, 59 mm/min feed, 1.0mm depth with non-water-soluble cutting oil.

Tool Variants and Specifications

The product lineup includes variants such as AQDEXZ, AQDEXZ-R, AQDEXZR, AQDEXZLS, AQDEXZOH3D, AQDEXZOH5D, AQDEXVF+TVFZ, and SGEZ. Differences include cutting edge design (e.g., 2-step cutting edge), presence of double margin, internal coolant supply, and suitability for deep or angled hole drilling.

Specifications cover tool diameters from 0.5mm to 50mm, flute lengths, overall lengths, shank diameters, and coating types. Standard tolerances include 180° flat drill face, 20° helix angle, and h6/h7 tolerance classes.

Material Compatibility

The drills are compatible with a broad range of materials:

• Hardened steels (30-60 HRC), mold steels, pre-hardened alloy steels.
• Stainless steels (SUS304, SUS316, SUS420).
• Structural steels (SS400), carbon steels (S45C).
• Titanium and nickel alloys, heat-resistant alloys.
• Cast irons (FC/FCD), aluminum alloys (AC/ADC), copper alloys.

Material suitability is rated from excellent (◎◎) to not recommended (×) depending on drill variant.

Performance Comparison and Advantages

• Up to 40% improvement in processing efficiency compared to competitors.
• Significant reduction in burr height, especially on sloped hole exits.
• Stable cutting with reduced vibration and improved chip evacuation due to oil holes in some variants.
• Ability to drill precise holes on angled surfaces without pre-drilled guide holes.

Recommended Procedures and Best Practices

• Use counter boring to ensure precise hole positioning and minimize hole enlargement.
• Drill guide holes 1 to 3 times the drill diameter deep to stabilize long drills and maintain accuracy.
• Select appropriate cutting fluids (water-soluble preferred; reduce speeds/feeds by 20% if non-water-soluble).
• For thin plate and blind hole tapping, use single-step drilling to maximize effective screw length and reduce process steps.
• Monitor tool wear, especially corner wear, to maintain hole quality.

Additional Resources

Product introduction and application videos are available online demonstrating drilling on sloped surfaces, countersinking, and burr comparisons.

Detailed Product Specifications

The document provides extensive technical data for AQUA Drill EX FLAT tools, including radius blind hole drills designed for one-operation drilling without a prepared hole. Key parameters include:

• Diameter range: 0.5 mm to 20.0 mm with fine increments (0.01 mm in some ranges).
• Groove lengths from 1.65 mm to 90 mm depending on diameter.
• Overall lengths from 47 mm to 145 mm.
• Neck lengths from approximately 2.03 mm to 93 mm.
• Shank diameters from 3 mm to 20 mm.
• Corner radius for radius blind hole drills: 0.3 mm to 0.5 mm.
• Material: Carbide with AQ coating.
• Helix angle: 20°; tip angle: 180°.
• Tolerances: Diameter h7, shank diameter h6.

Product codes (e.g., AQDEXZ0050, AQDEXZ0610) correspond to specific sizes and features, with prices ranging approximately from 6,120 JPY to 53,700 JPY. Stock availability is indicated, with some items exclusive to Japan or specific agents.

AQDEXZ-R Series: Radius Blind Hole Drills

Specialized tools for one-step radius blind hole and counter boring without pre-drilled holes. Features include:

• Diameter tolerance h7, tip angle 180°, carbide material with EX coating and 20° helix angle.
• Double margin design with 2 rake + XR shape and 30° angle.
• Diameter range from 3.0 mm to 12.0 mm and beyond.

These tools improve efficiency by eliminating the traditional two-step process (pilot hole + radius endmill), enabling single-pass machining.

Cutting Conditions and Usage Notes for AQDEXZ-R

• Rotation speeds from 400 to 60,000 min-1 depending on material and diameter.
• Feed rates from 20 to 1,020 mm/min.
• Adjust cutting conditions based on machine rigidity, clamping, and workpiece shape.
• Use on scale-free surfaces only.
• Recommended hole depth up to 2× diameter; deeper holes discouraged due to chip evacuation issues.
• For stainless steel, use tools ≤1.9 mm diameter.
• For inclined surfaces, reduce feed and speed according to angle θ.
• Side milling/peripheral cutting not possible.

Technical Specifications and Product Data Summary

Usage Guidelines and Best Practices

• Use guide holes for flat surface drilling to improve stability.
• Reduce feed rates on sloped surfaces to prevent vibration and hole distortion.
• Perform chamfering before drilling if chamfer diameter exceeds drill diameter, especially for tap holes.
• Adjust cutting conditions based on machine rigidity and workpiece clamping.
• Use recommended tool models for stainless steel to ensure quality.
• Do not perform side milling with these drills.

Cutting Conditions by Material and Hardness

• Structural steel, carbon steel, gray cast iron (up to 200 HB): Speeds 10,600 to 1,590 min-1; feed ~630 mm/min.
• Alloy and pre-hardened steels (20–30 HRC): Speeds 9,500 to 1,430 min-1; feed ~430 mm/min.
• Die and pre-hardened steels (30–40 HRC): Speeds 7,400 to 1,110 min-1; feed ~330 mm/min.
• High hardness steel (40–50 HRC): Speeds 5,300 to 800 min-1; feed ~240 mm/min.
• Aluminum alloy (A7075): Speeds 12,700 to 1,910 min-1; feed ~760 mm/min.
• Ductile cast iron (FCD400): Similar to structural steel.

Water-soluble cutting fluids are recommended; reduce speeds and feeds by 20% when using non-water-soluble fluids.

Summary

The AQUA Drill EX FLAT series offers a comprehensive, high-precision drilling solution with innovative design features such as double margin and specialized coatings. The series supports a wide range of materials and applications, improving productivity, hole quality, and tool life. Detailed technical specifications, cutting parameters, and best practices ensure optimal performance. The inclusion of radius blind hole drills (AQDEXZ-R) enables efficient one-step machining of complex holes, further enhancing operational efficiency.