PCD Tapered Form Drill – Flat-Bottom, 5×45° Chamfers Ø6 mm – Model PCD-TFD-FB-45x5-06-V1 | Aoshiji® Custom Tool

Overview

Many production parts require tapered-wall holes for assembly fit, sealing, or guided insertion, while also requiring a flat-bottom seating surface and controlled chamfers for burr removal or functional edge design. Traditional machining methods often require a sequence of tools (spot drill, drill, countersink, chamfer tool, and flat-bottom finishing). Each tool change introduces potential alignment variation, additional cycle time, and extra quality control steps.

The PCD Tapered Form Drill integrates these features into one tool, enabling:

• Accurate tapered wall formation (included angle or taper ratio per drawing)

• Clean flat-bottom geometry for seating and depth-controlled applications

• Five consistent 45° chamfers formed during the same pass

• Stable edge quality and long tool life through PCD cutting technology

This combination is particularly valuable in automated CNC production lines where repeatability and reduced downtime directly impact cost per part.

Typical Use Cases

This tool is commonly applied for:

• One-pass machining of tapered-wall flat-bottom holes with 5×45° chamfers

• Aluminum alloy and die-cast aluminum components requiring consistent edge quality

• Composite and abrasive non-metal materials where carbide tool life is limited

• Automotive and aerospace components requiring stable hole geometry and alignment

• Mold & die parts with tapered features and controlled seating surfaces

• Precision engineered parts where secondary chamfering and deburring are undesirable

Key Features

• Tapered body geometry produces accurate tapered walls (included angle or taper ratio per drawing)

• Flat-bottom design ensures controlled bottoms for sealing and seating surfaces

• 5×45° chamfers integrated for consistent edge finishing in a single operation

• PCD cutting edges provide high wear resistance and stable edge sharpness

• High concentricity aligns taper, bottom, and chamfers precisely

• Customizable tool design including diameter, taper specification, chamfer configuration, flute form, shank type, and coolant options

• Optional through-coolant design to enhance chip evacuation and thermal control

Benefits in Production

A one-pass tapered form drill provides direct manufacturing advantages:

• Shorter cycle time by reducing tool changes and setup steps

• Improved geometric consistency between taper wall, flat bottom, and chamfers

• Reduced risk of alignment errors associated with multi-tool machining

• Extended tool life versus carbide or HSS solutions in non-ferrous materials

• Lower cost per component in mass-production environments

• Stable performance for automated CNC machining lines and long production cycles

For production engineering teams, the most important benefit is repeatability: fewer tools, fewer variables, and more consistent results.

Engineering Notes for Hole Feature Control

To achieve stable performance and consistent feature geometry, key considerations include:

• Pre-hole strategy: depending on stock allowance and material, the tool can be used with a prepared pilot or as a direct form drill depending on design.

• Chip evacuation: through-coolant or air/coolant strategy should match hole depth and material chip behavior.

• Runout control: stable tool holding improves symmetry of the taper and chamfers.

• Material condition: die-cast aluminum with high silicon content may require optimized edge preparation and PCD grade selection.

• Chamfer definition: confirm chamfer locations and widths on the drawing to ensure the tool forms the required edges correctly.

Aoshiji® can review CAD/drawing data and recommend geometry adjustments to match the customer’s machining constraints.

Technical Specifications

Options & Customization

Aoshiji® Custom Tool provides full customization based on part drawings and production needs:

• Diameter range: Ø2 – Ø20 mm or per drawing

• Taper specs: included angle, taper-per-side, or taper ratio (1:50 / 1:100, etc.)

• Chamfer count and angle combinations (3×45°, 5×30°, mixed chamfer geometry)

• Guide sections, step geometry, and special flute forms for feature control

• Application-specific PCD grade selection and edge preparation

• Shank options and interface designs for machine-specific toolholding systems

• Coolant strategy: solid body or through-coolant channels depending on chip evacuation needs

This tool can be engineered to match specific assembly requirements where taper seating, chamfer function, and bottom flatness must remain consistent across long production runs.

Related Tools

• PCD Flat-Bottom Drill 2×60° + 1×45° Ø6 mm – Model PCD-FBD-60×2-45×1-06-V1 | Aoshiji® Custom Tool

• PCD Countersink 90° Ø10 mm – Model PCD-CSK-90-10-V1 | Aoshiji® Custom Tool

• PCD Special-Form Drill – Custom Geometry & Flat-Bottom Options | Aoshiji® Custom Tool

• PCD Chamfer Drill Bit 45° Ø6 mm – Model PCD-CHD-45-06-V1 | Aoshiji® Custom

• 6-Flute Step PCD Reamer Head – High-Accuracy Hole Finishing

Contact

For inquiries, drawings, or custom specifications:
[email protected]
Aoshiji® Custom Tool – Diamond Drilling Solutions for Precision Hole-Making