Long-Neck Solid Carbide Micro Drill for Deep Small Holes in Stainless Steel
Consistent Quality
Consistent geometry across repeat orders.
Đơn hàng linh hoạt
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Tiêu chuẩn & Theo yêu cầu
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.
Long-Neck Micro Drill
ISO M Stainless Steel
Deep / Recessed Holes
Made to Drawing
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
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
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.
Size & Application Confirmation
Provide the following information when requesting a quotation or confirming a drawing for a long-neck stainless-steel micro drill.
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.
Long-Neck Micro Drill Configuration Summary
Long-Neck Structure
Recessed / Deep Access
Primary Material
ISO M Stainless Steel
Kích thước
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.
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.
Dịch vụ OEM và nhãn hiệu riêng
OEM manufacturing and private-label supply options for stainless-steel component manufacturers, specialty-tool distributors and deep-small-hole machining customers.

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
Inquiry
Submit the stainless grade, hole depth, access dimensions, tolerance and quantity.
Engineering
Neck rigidity, flute reach, point geometry, coating and chip evacuation are reviewed.
Commercial
Quotation, trial quantity, production schedule and delivery terms are confirmed.
Production
Precision micro-grinding, long-neck formation, edge preparation, coating and marking.
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.

Protective Packing for Shipment
Finished drills are protected individually before batch labeling and export-carton reinforcement.
Individual Tool Protection
Each drill is individually protected in a plastic tube to reduce contact damage during storage, handling and transportation.
Batch & Label Verification
Tools are grouped and labeled by specification to support order verification before carton packing.
Export Carton Protection
Batch packaging, cushioning materials and reinforced export cartons are selected according to the order quantity and shipping method.
Reference Lead Time
The following timeframes are general references. Availability and production scheduling are reviewed for each order.
Shipping Options
Shipping arrangements can be selected according to order size, delivery schedule and destination.

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.
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.
Drawings, size lists and reference photos are welcome.














