3D/5D Through-Coolant Solid Carbide Drill for Steel

3D/5D THROUGH-COOLANT CARBIDE DRILL SERIES
Rigid 3×D and 5×D through-coolant drilling for steel and alloy-steel components, with internal coolant delivery for chip evacuation and cutting-zone temperature control.
Substrat :Fine-Grain Solid Carbide
L/D Ratio:3×D / 5×D
Drill Type:Through-Coolant Drill
Point Angle:Steel-Drilling Geometry
Flûte Compte :2 Flutes
Coolant:Dual Internal Channels
Dia. Range:Ø3.0–20.0 mm
Revêtement :Wear-Resistant PVD
Application / Material
P Steel & Alloy Steel

Une qualité constante

Une géométrie constante d'une commande à l'autre.

Commandes flexibles

Petits lots et formats variés disponibles.

Assistance OEM

Marquage, étiquettes et emballages personnalisés.

Modèles standard et sur mesure

Dimensions standard et configurations sur mesure.

3D/5D Through-Coolant Carbide Drill

This coated solid carbide drill is designed for stable and accurate hole machining in steel. Internal coolant channels deliver coolant directly toward the cutting zone to support chip evacuation and temperature control. The 3×D configuration provides greater rigidity for short holes, while the 5×D configuration provides additional reach for medium-depth drilling. Standard diameters are available from Ø3 to Ø20 mm. Diameter, flute length, overall length, shank, point geometry, coating, marking and packaging can also be reviewed for OEM requirements.

Profondeur de forage3×D / 5×D
Diameter RangeØ3–20 mm
Matériau de l'outilSolid Carbide
Liquide de refroidissementThrough-Coolant

Key Configuration

3×D or 5×D Length Options

Select the shorter 3×D version for rigidity or the 5×D version when additional drilling reach is required.

Dual Internal Coolant Outlets

Through-tool channels deliver coolant toward the drill point to support chip removal and cutting-zone cooling.

Steel-Drilling Configuration

Precision-ground geometry and a wear-resistant coating are configured for suitable steel-drilling applications.

Key Product Advantages

3D coated through-coolant solid carbide drill

Rigid 3×D Short-Hole Configuration

The shorter 3×D body limits unnecessary overhang and supports stable entry in short steel-drilling operations.

5D solid carbide through-coolant drill for steel

5×D Reach for Medium-Depth Holes

The 5×D configuration extends usable reach while retaining a solid carbide body for controlled production drilling.

Customized 3D and 5D internal-cooling carbide drills

Flexible 3D/5D Series Supply

Standard Ø3–20 mm sizes cover common steel-hole requirements, while geometry and dimensions can be reviewed for OEM supply.

8d carbide twist drill bit

Coolant Delivery Near the Cutting Edge

The outlet position directs coolant close to the drill point, supporting chip evacuation and temperature control in the hole.

Compatibilité avec les matériaux des pièces à usiner

ISO CODE GROUPE DE MATÉRIAUX REPRESENTATIVE MATERIALS SUITABILITY
P Steel / Alloy Steel Carbon steel, structural steel, alloy steel and selected tool steel ● Recommended
Application Note: Confirm the exact steel grade, hardness, hole depth, toolholding, coolant pressure and cutting parameters before production machining.

Applications & Target Scope

  • Machine and automotive components
  • Mold and die components
  • Hydraulic blocks and manifolds
  • General CNC production drilling
  • Short and medium-depth steel holes using through-spindle coolant

Product & Cutting-Edge Details

Coolant outlet near the carbide drill cutting edgeDual through-coolant outlets

Dual Through-Coolant Outlets

3D Through-Coolant Solid Carbide Drill Video

Tool Nomenclature & Dimensions

Standard dimensional parameters and technical nomenclature for 3D and 5D through-coolant solid carbide drills for steel.

Reference dimensions for the 3D through-coolant solid carbide drill
d1: Cutting Diameter L1: Longueur de la cannelure L: Longueur totale Depth: 3×D / 5×D

Standard Size Matrix

Reference 3D and 5D configurations retained from the original size chart. All dimensions are in millimeters.

d1 3D L1 3D L 5D L1 5D L
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
Remarque concernant les dimensions : L1 is the flute length, not the maximum blind-hole depth. Reserve suitable space for the drill point and chips.

Through-Coolant Drilling Guidance

  • Depth Selection: Use 3×D for short holes and 5×D only when the additional reach is required.
  • Coolant Supply: Maintain stable through-spindle coolant pressure, flow and suitable filtration.
  • Rigid Setup: Use a clean, low-runout precision holder and minimize unnecessary overhang.
  • Parameter Verification: Match speed and feed to the exact steel grade, hardness and hole condition.

Recommended Starting Cutting Parameters

General starting values and detailed application parameters are available in our technical guide.

Solid Carbide Drill Cutting Data Guide

Access ISO-categorized starting speeds and feeds for 3×D and 5×D steel-drilling trials.

View Cutting Data Guide

Through-Coolant Drill Product Family

Explore matching drill configurations across different depth-to-diameter requirements.

3D Series

Current Short-Hole Option

5D Series

Current Medium-Depth Option

8D Series

Deep-Hole Drilling

Custom Coolant Drills

Drawing-Based Supply

For additional sizes and related series, View the Solid Carbide Drill Catalog.

Solid Carbide Drill Customization

Custom geometry, specialized coatings, and internal coolant options are engineered according to workpiece material specifications, ISO application groups, and specific hole tolerances.

Custom geometry

Custom Geometry & Edge Preparation

Precision-ground point angles, web thinning, edge honing, and flute profiles optimized for chip control in deep-hole operations.

Dimensions

Dimensions & Reach Options

Metric, fractional inch, and intermediate decimal diameters configured in standard (3×D, 5×D, 8×D) or extended-reach lengths.

PARAMÈTRE CAPACITÉS DE FABRICATION
Diameter Capability Metric, inch and selected non-standard cutting diameters for steel hole machining
Drilling Depth & Length 3×D and 5×D drilling-depth configurations with corresponding flute length, reach and overall length options
Configuration de la tige DIN 6535 HA cylindrical shank, HB Weldon shank or drawing-defined shank diameter and clamping length
Point & Flute Geometry Steel-specific point geometry, web thinning, flute profile and edge preparation for stable entry and controlled chip formation
Choix du revêtement AlTiN, TiAlN, TiSiN or application-specific PVD coatings selected according to the steel grade, hardness and cutting conditions
Internal Coolant Channels Through-coolant channels deliver coolant near the drill point to support heat control and chip evacuation at 3×D or 5×D depth
Tolérance dimensionnelle m7, h6 or drawing-defined tolerances for cutting diameter, shank, runout, concentricity and required hole size
Note d'ingénierie : Custom parameters are finalized following technical drawing review and cutting data alignment.

Services OEM et de marque de distributeur

Turnkey OEM manufacturing options for industrial distributors, tooling brands, and high-volume machining facilities.

OEM branding

Gravure au laser

High-precision laser marking for logos, tool codes, EDP numbers, and diameter designations.

Custom Packaging

Single plastic tubes, multi-pack boxes, specialized inserts, and custom color selections.

Conditions commerciales

Flexible MOQ options tailored to custom specifications, standard trial runs, and scheduled supply contracts.

Processus technique

ÉTAPE 01

Demande de renseignements

Submit drawing, material specification, and quantity.

ÉTAPE 02

Ingénierie

Application evaluation and drawing confirmation.

ÉTAPE 03

Commercial

Quotation approval, pricing, and lead-time confirmation.

ÉTAPE 04

Production

CNC grinding, edge preparation, and specialized coating.

ÉTAPE 05

Contrôle qualité

Optical inspection, packaging, and dispatch.

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
POINT D'INSPECTION 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.
Voir « Fabrication et qualité »

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
Outils de coupe sur mesure 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 3×D and 5×D drilling, steel applications, through-coolant requirements, available configurations and machining conditions for this solid carbide drill.

What materials is this drill designed for?

This drill is designed primarily for carbon steel, structural steel, alloy steel and selected tool-steel applications. Final suitability should be confirmed according to the exact workpiece grade, hardness, hole diameter, drilling depth and machining conditions.

What is the difference between the 3×D and 5×D configurations?

The 3×D version is intended for shorter holes and generally provides higher rigidity, while the 5×D version provides additional reach for medium-depth drilling. Select the shortest suitable configuration to support stability and minimize tool overhang.

What is the advantage of the through-coolant design?

Internal coolant channels deliver coolant closer to the drill point. Under a suitable coolant supply, this configuration supports chip evacuation, cutting-zone temperature control and stable continuous drilling in steel components.

What coolant setup is required?

A stable through-spindle coolant supply is recommended. Coolant pressure, flow and filtration should be matched to the drill diameter, hole depth, workpiece material and machine capability. The internal channels should remain free from contamination or blockage.

What sizes and configurations are available?

Standard and custom 3×D or 5×D configurations can be reviewed according to the product series. Diameter, flute length, usable drilling depth, shank diameter, overall length, coating and coolant-hole design should be confirmed before ordering.

What information is required for a quotation?

Please provide the required diameter, 3×D or 5×D configuration, actual hole depth, workpiece grade and hardness, hole type, coolant capability, coating requirement and estimated quantity. A drawing is recommended for non-standard dimensions or custom coolant configurations.

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 dimensional verification and machining evaluation before committing to volume purchasing.

Can 3×D and 5×D drills be ordered together?

Yes. Different diameters and 3×D or 5×D configurations can be combined in one order when the carbide grade, coating and production requirements are compatible. Mixed-size purchasing is suitable for distributors, resellers and batch inventory planning.

Is OEM laser marking available?

Yes. Custom shank laser marking such as a logo, model number, dimensions, depth ratio or batch identification can be reviewed together with OEM labels, individual packaging and outer-box requirements.

What is the typical production lead time?

Standard stock items normally have a shorter lead time, while custom dimensions, internal coolant channels, special coatings and OEM packaging require additional production time. The exact schedule is confirmed according to specification, quantity 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 3×D and 5×D steel-drilling applications

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