2-Flute Solid Carbide Twist Drill with AlTiN Coating for Alloy 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.
AlTiN-Coated Carbide Twist Drill
This precision-ground 2-flute solid carbide twist drill is designed for stable CNC drilling in alloy steel and selected pre-hardened steel. Its AlTiN coating helps protect the cutting edges from heat and abrasive wear, while the two-flute geometry provides chip space and supports consistent hole production under rigid machining conditions. Standard 3×D and 5×D configurations are available, while diameter, length, point geometry, coolant channels, tolerance, marking and packaging can be reviewed for custom or OEM requirements.
Key Configuration
AlTiN-Coated Cutting Edges
The coating supports heat and abrasive-wear resistance during alloy-steel drilling.
Two-Flute Chip Space
Two spiral flutes balance carbide strength with space for chip formation and evacuation.
3×D and 5×D Series
Standard depth configurations cover common blind-hole and through-hole requirements.
Key Product Advantages
Workpiece Material Compatibility
Actual machinability depends on alloy content, heat treatment, hardness, drilling depth and machine condition.
Applications & Target Scope
- Shafts, gears and transmission components
- Hydraulic and machine-tool components
- Mold bases and industrial equipment parts
- Blind-hole and through-hole drilling in alloy steel
- Pre-machining holes in selected heat-treated components
Product & Cutting-Edge Details
Product Series Information
Reference product construction and available series information. Exact standard sizes are confirmed according to diameter and drilling depth.

Tool Nomenclature & Dimensions
Standard dimensional parameters and technical nomenclature for AlTiN-coated 2-flute solid carbide twist drills for alloy steel.
Technical Configuration
Standard construction and available configuration details for this alloy-steel drill series.
| Tool Type | Solid carbide twist drill for alloy steel | Flute Design | 2 spiral flutes |
|---|---|---|---|
| Vật liệu dụng cụ | Fine-grain solid carbide | Coating | AlTiN |
| Workpiece Group | ISO P and selected ISO H | Workpiece Hardness | Selected applications up to HRC55* |
| Diameter Range | Ø3.0–20.0 mm | Standard Depth | 3×D and 5×D |
| Coolant Options | External or through coolant | Shank | Cylindrical straight shank |
Applications approaching HRC55 require confirmation of grade, heat treatment, hardness, hole depth, coolant supply and machine rigidity.
Alloy-Steel Drilling Guidance
- Rigid Clamping: Use a rigid holder and control cutting-edge runout.
- Hardness Adjustment: Reduce cutting speed as workpiece hardness and drilling depth increase.
- Stable Feed: Maintain continuous feed to avoid rubbing and localized work hardening.
- Coolant & Chips: Provide consistent coolant flow and verify chip evacuation.
Recommended Starting Cutting Parameters
General starting values and detailed application parameters are available in our technical guide.
Solid Carbide Drill Cutting Data Guide
Access starting speeds and feeds for alloy-steel product selection and application testing.
Drilling Product Family Overview
Select the matching series according to drilling depth and alloy-steel application conditions.
HY-AS-3D Series
Short Drilling
HY-AS-5D Series
Medium-Depth Drilling
Through-Coolant Series
Deeper-Hole Option
For additional sizes and related drill series, View the Solid Carbide Drill Catalog. Custom dimensions can be reviewed according to your drawing or application requirements.
AlTiN-Coated Alloy Steel Drill Customization
Cutting diameter, flute length, two-flute geometry, edge preparation and AlTiN coating specification can be configured for alloy-steel drilling. The tool design is reviewed according to alloy composition, hardness, hole depth, heat generation and machining conditions.
Alloy-Steel Geometry & Edge Preparation
Point form, web thickness, flute profile and edge preparation can be configured to balance cutting-edge strength, controlled thrust and chip evacuation in alloy steel.
Diameter & Length Options
Metric, fractional-inch and non-standard diameters can be configured with application-matched flute lengths, overall lengths and shank dimensions.
Dịch vụ OEM và nhãn hiệu riêng
OEM manufacturing and private-label supply options for alloy-steel manufacturers, industrial distributors and repeat-production customers.

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
Inquiry
Submit the alloy grade, hardness, hole dimensions, tolerance and quantity.
Engineering
Geometry, edge strength, AlTiN coating and coolant conditions are reviewed.
Commercial
Quotation, MOQ, production schedule and delivery terms are confirmed.
Production
CNC grinding, edge preparation, AlTiN coating and laser identification.
Quality Control
Diameter, point form, coating condition, runout and cutting edges are inspected.
3D/5D General-Purpose Drill Customization
Cutting diameter, 3×D or 5×D drilling depth, point geometry, edge preparation, coating and tolerance can be configured for general-purpose hole machining. Material range and cutting conditions are reviewed before the final geometry and coating are selected.
General-Purpose Geometry & Edge Preparation
Point form, web thinning, flute profile, margins and cutting-edge preparation can be balanced for stable performance across confirmed workpiece materials.
3D/5D Diameter & Length Options
Metric, fractional-inch and drawing-defined diameters are available with 3×D or 5×D configurations and matching overall and shank dimensions.
Dịch vụ OEM và nhãn hiệu riêng
OEM manufacturing and private-label supply options for industrial distributors, multi-material workshops and general tooling brands.

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
Inquiry
Submit the primary material, hole dimensions, tolerance, coolant method and quantity.
Engineering
3D/5D depth, material range, geometry, edge preparation and coating are reviewed.
Commercial
Quotation, MOQ, production schedule and delivery terms are confirmed.
Production
CNC grinding, edge preparation, coating and tool identification.
Quality Control
Diameter, depth configuration, point geometry, 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.

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 alloy steel applications, 2-flute cutting geometry, AlTiN coating, coolant selection and available configurations for this solid carbide twist drill.
Which materials is this drill designed for?
This drill is designed primarily for ISO P materials, including carbon steel, low-alloy steel, medium-alloy steel and selected tool steels. Final suitability should be confirmed according to the exact material grade, hardness, hole depth and machining conditions.
What are the benefits of the AlTiN coating?
The AlTiN coating provides heat resistance and wear protection during alloy steel drilling. It helps protect the cutting edges under elevated cutting temperatures and supports more consistent tool life in suitable CNC machining conditions.
Why does this drill use a 2-flute geometry?
The 2-flute geometry provides a practical balance between cutting-edge strength, tool rigidity and chip space. Its spiral flutes support controlled chip formation and evacuation during blind-hole and through-hole drilling in alloy steel.
What workpiece hardness can this drill machine?
The suitable hardness range depends on the alloy steel grade, heat-treatment condition, drill diameter, hole depth, coating and machine rigidity. Please provide the actual workpiece hardness so the carbide grade, edge preparation and cutting parameters can be confirmed.
Is this drill suitable for blind holes and through holes?
Yes. It can be configured for both blind-hole and through-hole drilling. The required flute length, usable drilling depth, point allowance and chip-evacuation space should be confirmed before ordering.
What coolant method is recommended?
External coolant is suitable for many short-hole applications, while through coolant is recommended for deeper holes or conditions requiring improved chip evacuation and temperature control. The final method should be selected according to the drilling depth, diameter and machine setup.
What information is required for a quotation?
Please provide the required diameter, hole depth, alloy steel grade, actual hardness, coolant method, tolerance and estimated quantity. A drawing is recommended for stepped, long-reach or other non-standard drill 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 evaluating hole quality, chip evacuation, cutting stability and tool life before committing to volume purchasing.
Can mixed sizes be ordered together?
Yes. Standard and custom sizes can be combined in one order when the geometry, carbide grade and coating requirements are compatible. Mixed-size purchasing is suitable for distributors, wholesalers and batch inventory planning.
Can the drill dimensions and geometry be customized?
Yes. The cutting diameter, flute length, overall length, shank diameter, point geometry, flute profile, edge preparation, coolant configuration and dimensional tolerance can be reviewed according to the application or customer drawing.
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, individual tool protection and branded packaging requirements.
What is the typical production lead time?
Standard stock items normally have a shorter lead time, while custom dimensions, special coolant configurations and 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 alloy steel 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.









Two-Flute Drill Series










