Long-Neck Solid Carbide Micro Drill for Deep Small Holes in Stainless Steel

Long-Neck Stainless Micro Drill
A made-to-drawing long-neck micro drill for recessed and deep small holes in stainless-steel components.
Substrate:Fine-Grain Solid Carbide
Neck Length / Reach:Made to Drawing
Drill Type:Long-Neck Micro Drill
Point Geometry:Stainless-Specific
Flute Count:2 Flutes (Polished)
Coolant Supply:External Coolant
Dia. Range:Made to Drawing
Coating:Uncoated / Optional PVD AlTiSiN
Application / Material
M Stainless

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.

Long-Neck Solid Carbide Micro Drill Overview

The Long-Neck Solid Carbide Micro Drill is designed for deep, recessed and difficult-to-access small holes in stainless-steel components. Its extended reduced-neck section provides additional reach and clearance near shoulders, side walls and stepped features where a standard micro drill cannot access the hole position effectively. Each tool is reviewed against the customer drawing or confirmed dimensions. Cutting diameter, flute length, neck diameter, neck length, usable reach, shank diameter, overall length, point geometry, edge preparation and coating can be configured for the stainless-steel grade, hole geometry, machine condition and required production quantity.

Tool Structure
Long-Neck Micro Drill
Primary Material
ISO M Stainless Steel
Hole Type
Deep / Recessed Holes
Supply Type
Made to Drawing
Long-neck solid carbide micro drill for deep small holes in stainless steel

Key features of a long-neck solid carbide micro drill for stainless steelToolholding coolant and chip evacuation guidance for stainless steel micro drillingDeep recessed small-hole applications for a long-neck micro drill

Key Configuration

Extended Reduced Neck

Custom neck diameter and neck length provide clearance for recessed or deep small-hole positions near shoulders, steps and side walls.

Fine-Grain Solid Carbide

A rigid carbide substrate supports dimensional control and cutting-edge stability at micro cutting diameters.

Stainless-Specific Geometry

Point geometry, flute form and edge preparation are selected for the confirmed stainless-steel grade and hole condition.

Key Product Advantages

Access to Recessed Holes

The reduced neck provides clearance around shoulders, steps and nearby walls while maintaining the usable reach required by the application.

Application-Matched Rigidity

Neck length and tool overhang are reviewed together to balance access requirements with bending resistance and micro-tool stability.

Controlled Stainless Cutting

Cutting geometry can be configured to reduce rubbing, heat accumulation and work hardening under suitable machining conditions.

Made-to-Drawing Supply

Non-standard diameter, flute length, neck, shank, overall length, coating and related requirements can be reviewed for repeat OEM supply.

Workpiece Material Compatibility

ISO CODE MATERIAL GROUP REPRESENTATIVE GRADES STATUS
M Stainless Steel SUS303, SUS304, SUS316, SUS316L, SUS420, SUS430 Primary Application
Material Note: Final suitability depends on the exact stainless-steel grade, hardness, hole depth, coolant delivery, neck configuration and machine rigidity. Confirm the application before ordering.

Applications & Target Scope

  • Deep or recessed blind and through holes in stainless-steel components
  • Small holes located close to shoulders, steps or side walls
  • Precision valve, nozzle and flow-control components
  • Medical, sensor, connector and miniature mechanical parts
  • Low- and medium-volume production requiring non-standard tool reach

Product & Machining Details

Long-Neck Solid Carbide Micro Drill for Deep Small Holes in Stainless Steel 1
Long-Neck Solid Carbide Micro Drill for Deep Small Holes in Stainless Steel 3
Long-Neck Solid Carbide Micro Drill for Deep Small Holes in Stainless Steel 5
Machining Setup: Select only the neck length and usable reach required for the hole position. Toolholding, coolant access, chip evacuation, machine rigidity and measured runout should be reviewed together before deep or recessed stainless-steel micro drilling.

Tool Nomenclature & Configurable Dimensions

This long-neck micro drill is supplied according to the customer drawing or confirmed dimensions rather than one fixed standard-size table. Cutting diameter, flute length, reduced-neck dimensions, usable reach, shank and overall length are reviewed together to provide the required access while maintaining practical micro-tool rigidity.

Tool Material Fine-Grain Solid Carbide
Product Type Long-Neck Solid Carbide Micro Drill
Primary Workpiece ISO M Stainless Steel / Confirm Exact Grade
Cutting Diameter Custom / Confirmed by Drawing
Flute Length Matched to Hole Depth & Chip-Evacuation Requirement
Neck Diameter Reduced Neck / Custom According to Clearance Requirement
Neck Length Custom According to Recessed Position & Rigidity Review
Usable Reach Confirmed from Workpiece Geometry & Required Clearance
Shank Diameter Confirmed for Holder / Collet Interface
Overall Length Custom According to Machine & Holder Layout
Point Geometry Application-Specific
Edge Preparation Matched to Confirmed Stainless-Steel Application
Coating Application-Specific / Confirm Before Production
Supply Basis Customer Drawing / Confirmed Dimensions
Specification Note: Final dimensions should be confirmed together rather than independently. Increasing neck length or usable reach changes the rigidity of the micro tool and may require adjustment of the remaining tool structure.

Size & Application Confirmation

Provide the following information when requesting a quotation or confirming a drawing for a long-neck stainless-steel micro drill.

REQUIRED ITEM INFORMATION TO PROVIDE SELECTION PURPOSE
Hole Requirement Diameter, depth, tolerance, blind / through Defines cutting section and required flute length
Access Requirement Shoulder, wall, step or recessed position Defines neck diameter, neck length and usable reach
Workpiece Stainless grade and hardness Defines point, edge preparation and coating review
Toolholding Holder / collet and shank requirement Defines shank diameter and practical overhang
Machine Condition Machine rigidity, runout and coolant delivery Supports stable deep micro-hole machining
Order Requirement Trial quantity / repeat production quantity Supports configuration review and production planning

Long-Neck Stainless Micro-Drilling Guidance

  • Use the Shortest Practical Neck: Select only the neck length required to clear the shoulder, wall or recessed feature.
  • Separate Reach from Hole Depth: Neck length provides access and clearance; flute length and chip evacuation still determine the practical drilling section.
  • Control Runout & Overhang: Long-neck micro tools are more sensitive to bending, runout and machine rigidity than standard-reach tools.
  • Confirm Stainless Grade & Coolant: Geometry, coating and machining conditions should be selected for the actual stainless grade, hardness and coolant access.

Recommended Starting Cutting Parameters

The original product information does not provide one universal speed or feed table. Starting cutting data should be confirmed after the cutting diameter, stainless-steel grade, hole depth, flute length, neck length, coating, coolant condition, machine rigidity and runout have been established.

Application Review: Begin from a conservative, stable condition and verify entry behavior, chip evacuation, heat generation, hole quality and tool wear before increasing production parameters.

Long-Neck Micro Drill Configuration Summary

Long-Neck Structure

Recessed / Deep Access

Primary Material

ISO M Stainless Steel

ขนาด

Drawing-Based

Geometry & Coating

Application-Specific

Long-Neck Stainless Steel Micro Drill Customization

Cutting diameter, reduced-neck diameter, neck length, flute length, point geometry and coating can be configured for deep small holes and restricted-access features in stainless steel. Each design is reviewed to balance reach, chip evacuation and resistance to deflection.

Custom long-neck solid carbide micro drill for deep small holes in stainless steel

Long-Neck Clearance & Deep-Hole Micro Geometry

Reduced-neck clearance, neck transition, flute profile, micro-point form and cutting-edge preparation can be configured around the required deep-hole reach and stainless-steel cutting conditions.

PARAMETER MANUFACTURING CAPABILITIES
Cutting Diameter Metric and drawing-defined micro diameters for deep small-hole machining in stainless steel
Neck Diameter & Length Reduced-neck diameter, neck length and transition radius configured according to the hole depth and clearance requirement
Flute & Overall Length Application-specific flute length, usable reach and overall length balanced for chip evacuation and rigidity
Shank Configuration Precision cylindrical shank with drawing-defined diameter and clamping length for low-runout holding
Point & Flute Geometry Stainless-specific micro-point, web thinning and flute profile configured to control thrust and chip formation
Coating Selection Heat-resistant PVD coating or selected uncoated configuration reviewed according to stainless grade and coolant
Coolant & Chip Evacuation External coolant, mist or air-assisted removal reviewed to reduce heat and prevent chip packing in deep small holes
Dimensional Control Drawing-defined diameter, neck length, flute length, runout, concentricity and deep-hole requirements
Engineering Note: Please provide the stainless grade, hole diameter, depth, access restriction, neck clearance, tolerance, coolant and quantity. Long-neck dimensions are confirmed after rigidity and chip-evacuation review.

บริการ OEM และแบรนด์ส่วนตัว

OEM manufacturing and private-label supply options for stainless-steel component manufacturers, specialty-tool distributors and deep-small-hole machining customers.

OEM branding and protective packaging for Long-Neck Solid Carbide Micro Drill for Deep Small Holes in Stainless Steel

Tool Identification

Tool codes, diameter specifications and batch identification can be applied according to the available shank area.

Protective Packaging

Individual protective tubes, internal supports, diameter labels and private-label packaging help protect delicate micro cutting edges.

Commercial Terms

Flexible MOQ options for sample evaluation, custom-size trials, repeat orders and scheduled batch supply.

Technical Workflow

STAGE 01

Inquiry

Submit the stainless grade, hole depth, access dimensions, tolerance and quantity.

STAGE 02

Engineering

Neck rigidity, flute reach, point geometry, coating and chip evacuation are reviewed.

STAGE 03

Commercial

Quotation, trial quantity, production schedule and delivery terms are confirmed.

STAGE 04

Production

Precision micro-grinding, long-neck formation, edge preparation, coating and marking.

STAGE 05

Quality Control

Diameter, neck dimensions, flute length, runout and micro-edge condition 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
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Product FAQs

Product-specific information about long-neck micro drilling, deep small-hole machining in stainless steel, tool rigidity, chip evacuation, coolant requirements and custom reach configurations.

What applications is this long-neck micro drill designed for?

This micro drill is designed for deep or recessed small holes in selected stainless steels where additional reach is required beyond a standard micro-drill configuration. Typical applications include blind holes, through holes, narrow-access positions and precision components where the cutting section must reach past surrounding features.

What is the difference between neck length and flute length?

Flute length is the cutting and chip-carrying section of the drill, while neck length provides additional reach behind the cutting section. A longer neck does not automatically increase usable drilling depth. Hole depth, chip evacuation and tool rigidity must all be considered when selecting the final configuration.

How should the neck length be selected for deep small holes?

Use the shortest neck length that provides sufficient clearance for the required hole and surrounding workpiece features. Excessive unsupported length reduces micro-drill rigidity and increases sensitivity to runout, vibration and cutting-load variation.

What machining conditions are important for deep micro holes in stainless steel?

Low runout, rigid toolholding, short practical overhang and stable feed are especially important. Stainless steel can generate long chips and concentrated cutting heat, so coolant delivery and chip evacuation should be monitored carefully throughout the drilling cycle.

Can the diameter, neck length, flute length and coating be customized?

Yes. Cutting diameter, flute length, neck length, shank diameter, overall length, point geometry, edge preparation and coating can be reviewed according to the required hole depth, stainless-steel grade, workpiece layout and machine setup.

What information is required for a quotation?

Please provide the cutting diameter, hole depth, required flute length, neck length, shank diameter, overall length, stainless-steel grade, hardness, coolant condition and required quantity. A drawing is recommended for long-neck or restricted-access applications so the reach and clearance can be confirmed before quotation.

Ordering & OEM FAQs

General information for trial orders, mixed configurations, OEM marking and production scheduling.

Do you accept small trial orders?

Yes. Small trial quantities can be reviewed for hole-quality testing, reach verification and tool-life evaluation before larger repeat orders.

Can different diameters and neck lengths be ordered together?

Yes. Different cutting diameters, flute lengths and neck lengths can normally be combined in one order when the carbide, coating and production requirements are compatible. Each configuration should be clearly identified by size, item code or drawing.

Is OEM laser marking available?

Yes. Custom laser marking for logos, item codes, tool sizes and batch identification can be reviewed together with private labels and OEM packaging requirements.

What is the typical production lead time?

Lead time depends on the cutting diameter, neck length, flute length, coating, quantity and whether the drill uses a standard or custom configuration. Final production scheduling is confirmed after the dimensions and technical requirements are approved.

Downloads & Technical Resources

Access product series information and starting cutting-data references for stainless-steel micro-drilling application review.

Product Series Catalog PDF
Complete drill range, dimensions and available configurations
Speeds & Feeds Guide
Starting cutting data for stainless-steel and deep micro-hole application review

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.