3D/5D DLC-Coated 2-Flute Solid Carbide Twist Drill for Aluminum Alloys

Aluminum Solid Carbide Drill Series
Low-friction 3D/5D drilling for aluminum alloys with DLC coating and a chip-clearance-focused 2-flute geometry.
Substrate:Fine-Grain Solid Carbide
L/D Ratio:3×D / 5×D
Drill Type:Twist Drill
Point Angle:Confirm by Application
Flute Count:2 Flutes / 60° Helix
Coolant:External / Through Coolant
Dia. Range:Approx. Ø3–20 mm
Coating:DLC
Application / Material
N Non-Ferrous

Consistent Quality

Consistent geometry across repeat orders.

คำสั่งซื้อที่ยืดหยุ่น

Small batches and mixed sizes available.

OEM Support

Custom marking, labels and packaging.

แบบมาตรฐานและแบบตามสั่ง

Standard sizes and custom configurations.

3D/5D DLC-Coated Solid Carbide Twist Drill Overview

This DLC-coated solid carbide twist drill is designed for 3×D and 5×D hole machining in aluminum alloys and selected non-ferrous materials. Its two-flute, high-helix geometry provides chip space for ductile materials, while the low-friction DLC coating helps reduce aluminum adhesion and built-up edge under suitable cutting conditions. Standard diameter groups are available for regular purchasing, while length, coolant configuration, shank, laser marking and packaging can be reviewed for custom or OEM requirements.

Hole Depth
3×D / 5×D
Flute Count
2 Flutes
Tool Material
Solid Carbide
Coating
DLC

Key Configuration

3×D / 5×D Reach

Short- and medium-depth configurations cover common blind-hole and through-hole drilling requirements in aluminum components.

60° High-Helix Flutes

The high-helix flute form provides chip space and supports chip lifting in ductile aluminum alloys.

DLC Low-Friction Surface

The DLC coating helps reduce material adhesion and built-up edge when matched with suitable lubrication and cutting conditions.

Key Product Advantages

DLC-coated solid carbide twist drill cutting-edge details for aluminum

Reduced Aluminum Adhesion

DLC-coated and low-friction chip-contact surfaces help limit built-up edge during aluminum drilling under suitable machining conditions.

DLC-coated two-flute solid carbide twist drills for aluminum

Generous Chip Space

The two-flute design leaves sufficient flute volume for continuous evacuation of ductile aluminum chips.

Solid carbide twist drill geometry and product details for aluminum drilling

Stable Hole Machining

The carbide substrate and application-oriented cutting geometry support consistent drilling in regular CNC production.

DLC-coated carbide drill material and surface for non-ferrous machining

Flexible Supply Configuration

Diameter, length, coolant configuration, shank, laser marking and packaging can be reviewed for standard and OEM orders.

Workpiece Material Compatibility

ISO CODE MATERIAL GROUP REPRESENTATIVE MATERIALS SUITABILITY
N Aluminum Alloys 2xxx, 5xxx, 6xxx and 7xxx series ● Recommended
N Cast Aluminum Cast aluminum grades; confirm silicon content and abrasiveness ○ Confirm Grade
N Copper / Brass Copper and brass grades with suitable chip behavior ○ Confirm Application
Application Note: Final geometry, coolant configuration and cutting conditions should be confirmed according to the exact aluminum or non-ferrous grade, hole depth, diameter and machine condition.

Applications & Target Scope

  • Blind-hole and through-hole drilling in aluminum components
  • Automotive housings, brackets and lightweight structural parts
  • Aerospace aluminum plates and precision components
  • Mold, jig and fixture components made from aluminum alloys
  • General CNC drilling applications requiring 3×D or 5×D hole depth

Product & Cutting-Edge Details

DLC-coated solid carbide twist drill detail for aluminum machining
DLC-Coated 2-Flute Drill Detail
DLC Drill Rotation & Cutting-Edge Detail

Tool Nomenclature & Dimensions

Standard dimensional parameters and technical nomenclature for 3D/5D DLC-coated solid carbide twist drills for aluminum and selected non-ferrous materials.

D: Cutting Diameter L1: Flute Length L: Overall Length Series: 3×D / 5×D

Standard Size Matrix

Reference standard dimensions for the 3×D and 5×D configurations. Final availability is confirmed by diameter, configuration and order quantity.

D (MM) 3D L1 (MM) 3D L (MM) 5D L1 (MM) 5D L (MM)
3 20 62 28 66
4 24 66 36 74
5 28 66 44 82
6 28 66 44 82
7 34 79 53 91
8 41 79 53 91
9 47 89 61 103
10 47 89 61 103
11 55 102 71 118
12 55 102 71 118
13 60 107 77 124
14 60 107 77 124
15 65 115 83 133
16 65 115 83 133
17 73 123 93 143
18 73 123 93 143
19 79 133 101 153
20 79 133 101 153
Specification Note: All dimensions are in millimetres. L1 represents flute length rather than maximum usable blind-hole depth. Allow sufficient space for the drill point and chip accumulation, and confirm the exact D × L1 × L configuration before ordering.

Aluminum Drilling Guidance

  • Length Selection: Choose the shortest 3×D or 5×D configuration that fully covers the required hole depth.
  • Blind-Hole Allowance: Confirm flute length separately from usable hole depth and allow additional space for the drill point and chip accumulation.
  • Lubrication & Chip Evacuation: Use suitable lubrication, air or coolant delivery to reduce aluminum adhesion and support chip evacuation.
  • Coolant Configuration: Confirm through-coolant feasibility separately, particularly for smaller cutting diameters.

Recommended Starting Cutting Parameters

Starting values should be selected according to the exact aluminum grade, drill diameter, hole depth, coating, coolant delivery and machine rigidity.

Solid Carbide Drill Cutting Data Guide

Access ISO-categorized starting speeds and feeds for solid carbide drilling applications.

View Cutting Data Guide

Drilling Product Family Overview

Explore matching solid carbide drill series across different depth-to-diameter configurations.

HY-3D Series

Short Drilling (Current)

HY-5D Series

Medium Depth (Current)

HY-8D Series

Deep-Hole Drilling

HY-12D Series

Extra Deep-Hole

For additional size ranges and related drill series, View the Solid Carbide Drill Catalog . Custom dimensions can be reviewed according to your drawing or application requirements.

3D/5D DLC Aluminum Drill Customization

Cutting diameter, 3×D or 5×D depth, polished flute geometry, sharp edge preparation and DLC coating can be configured for aluminum-alloy drilling. The design focuses on low friction, reduced material adhesion and efficient chip evacuation.

Custom DLC-coated solid carbide drill geometry for aluminum alloys

Aluminum Geometry, Polishing & Edge Preparation

High-positive cutting geometry, polished flutes, controlled web thinning and sharp edges can be configured to reduce built-up edge and support clean aluminum holes.

3D and 5D diameter and length options for aluminum drills

3D/5D Diameter & Length Options

Metric, fractional-inch and non-standard diameters can be supplied in 3×D or 5×D configurations with matched shank and overall dimensions.

PARAMETER MANUFACTURING CAPABILITIES
Diameter Capability Metric, fractional-inch and drawing-defined diameters for aluminum-alloy hole machining
Drilling Depth 3×D and 5×D configurations with matched flute, reach and overall lengths
Shank Configuration DIN 6535 HA cylindrical shank or drawing-defined shank and clamping dimensions
Point Geometry Aluminum-specific point form and web thinning configured for low thrust and controlled entry
Flute & Edge Preparation Two polished flutes, generous chip space and sharp edge preparation for reduced adhesion
DLC Coating DLC coating and pre-coating surface preparation reviewed according to aluminum grade and lubrication
Coolant & Lubrication External coolant, mist or minimum-quantity lubrication reviewed for chip removal and anti-adhesion
Dimensional Tolerance Drawing-defined diameter, shank, runout, concentricity and hole-finish requirements
Engineering Note: Provide the aluminum grade, silicon content, hole dimensions, tolerance, coolant or MQL method and quantity. DLC coating and polished-edge configuration are confirmed after review.

บริการ OEM และแบรนด์ส่วนตัว

OEM manufacturing and private-label supply options for aluminum-component manufacturers, industrial distributors and tooling brands.

OEM branding and packaging for 3D/5D DLC-Coated 2-Flute Solid Carbide Twist Drill for Aluminum Alloys

Laser Etching

Custom laser marking for logos, tool codes, diameter specifications, coating identification and batch numbers.

Custom Packaging

Individual protective tubes, diameter labels, multi-pack boxes, custom inserts and private-label packaging options.

Commercial Terms

Flexible MOQ options for standard configurations, custom sizes, trial orders and scheduled repeat supply.

Technical Workflow

STAGE 01

Inquiry

Submit the aluminum grade, hole dimensions, tolerance, lubrication method and quantity.

STAGE 02

Engineering

3D/5D depth, polished geometry, edge sharpness and DLC coating are reviewed.

STAGE 03

Commercial

Quotation, MOQ, production schedule and delivery terms are confirmed.

STAGE 04

Production

Precision grinding, flute polishing, DLC coating and tool identification.

STAGE 05

Quality Control

Diameter, polished flutes, coating condition, runout and cutting edges are inspected.

Inspection & Quality Control

Drill dimensions, cutting-edge geometry and visible surface condition are checked according to the confirmed product specification and application requirements.

Carbide drill inspection and quality control at HY Cutting Tools
INSPECTION ITEM WHAT WE CHECK
Cutting Diameter Checked against the confirmed product specification or drawing requirement
Overall & Flute Length Dimensional consistency according to the confirmed drill configuration
Runout Checked according to the drill type, diameter and agreed application requirement
Point Geometry Point angle, cutting-edge form and visible geometry condition
Cutting Edge Visible edge condition, grinding quality and edge preparation
Surface & Coating Coating condition, surface consistency and visible defects
Marking & Packaging Product model, quantity, marking and label consistency against the confirmed order
Quality Note: Inspection requirements and tolerance values vary by drill type, diameter, geometry and application. Product-specific requirements are confirmed before production.
ดูส่วนการผลิตและคุณภาพ

Protective Packing for Shipment

Finished drills are protected individually before batch labeling and export-carton reinforcement.

Individual plastic tube protection for carbide drills

Individual Tool Protection

Each drill is individually protected in a plastic tube to reduce contact damage during storage, handling and transportation.

Batch identification label and spec verification for cutting tools

Batch & Label Verification

Tools are grouped and labeled by specification to support order verification before carton packing.

Protective batch packing and export carton protection for cutting tools

Export Carton Protection

Batch packaging, cushioning materials and reinforced export cartons are selected according to the order quantity and shipping method.

Each tool is individually protected before being packed into export cartons. Custom labels, tube colors and outer packaging can be discussed for OEM orders.

Reference Lead Time

The following timeframes are general references. Availability and production scheduling are reviewed for each order.

ORDER TYPE REFERENCE LEAD TIME
Standard Products Usually 3–7 working days, subject to availability
Coated or Marked Products Confirmed after specification and order review
เครื่องมือตัดตามสั่ง Usually 10–20 working days after drawing approval
Large Batch Orders Confirmed according to the production schedule
Lead Time Note: Final lead time is confirmed according to specification, quantity, coating and packaging requirements.

Shipping Options

Shipping arrangements can be selected according to order size, delivery schedule and destination.

International Express Door-to-door delivery
Customer-Nominated Forwarder Shipment through your appointed agent
Air Freight For time-sensitive batch orders
Sea Freight For larger-volume orders
Shipping and payment hy cutting tools end mill drills
View Buyer & Reseller Resources

Product FAQs

Product-specific information about applications, available configurations, customization and machining requirements for this carbide drill.

What materials and applications is this drill designed for?

This product is positioned for Aluminum Alloys, Non-Ferrous Materials. Final suitability should be confirmed from the exact workpiece grade, hole type, diameter, depth and machining conditions.

Why is DLC coating useful for aluminum-alloy drilling?

DLC provides a low-friction surface that can help reduce aluminum adhesion and built-up edge, supporting cleaner chip flow and more consistent hole quality.

What sizes and configurations are available?

The product is offered around the stated 3D/5D configuration. Other diameter, flute-length, overall-length or shank requirements can be reviewed according to the confirmed specification.

What coolant method can be used?

External coolant, air blast or mist can be selected according to the machine and workpiece. The main goal is to keep chips moving freely and limit material adhesion at the cutting edge.

Which surface treatment is specified for this product?

This product is specified with DLC coating. The low-friction surface is particularly relevant to aluminum and other non-ferrous applications where chip adhesion can be a concern.

What information is required for a quotation?

Please provide required diameter, hole depth or reach, workpiece material, coating requirement, and estimated quantity. A drawing is recommended for custom or non-standard requirements.

Ordering & OEM FAQs

General information for trial orders, mixed-size purchasing, private labeling, and production scheduling.

Do you accept small trial orders?Yes. Small sample or trial orders are welcomed for testing and performance evaluation before committing to volume purchasing.
Can mixed sizes be ordered together?Yes. Standard and custom sizes can be combined in one order when the production and coating requirements are compatible. Mixed-size purchasing is useful for distributors and batch inventory planning.
Is OEM laser marking available?Yes. Custom shank laser marking such as logo, model number, specifications, or batch identification can be reviewed together with OEM labels and packaging requirements.
What is the typical production lead time?Standard stock items normally have a shorter lead time, while custom tools and special OEM orders require additional production time. The exact schedule is confirmed according to specification, quantity, coating, and current production capacity.

Downloads & Technical Resources

Access product dimensions, series information and starting cutting data for product selection and application review.

Product Series Catalog PDF
Complete product range, dimensions and available configurations
Speeds & Feeds Guide
Starting cutting data for product selection and application testing

Need Sizes, Pricing or Custom Options?

Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.

Standard Sizes Small Trial Orders Mixed Sizes OEM & Custom Options
Request Price & Specifications Chat on WhatsApp

Drawings, size lists and reference photos are welcome.