Custom Carbide Drills

Custom Carbide Drills Built Around Your Hole Features

Landun custom carbide drills are developed for hole dimensions, profiles, materials, and machining conditions that cannot be handled efficiently with standard drills.

From center drills, spot drills, step drills, and flat-bottom drills to special lengths, non-standard diameters, internal-coolant designs, and combination tools, each solution can be reviewed according to the component drawing, workpiece material, hole structure, machine conditions, coolant method, and production requirements.

Customers can start with a confirmed tool drawing, an existing drill sample, or a machining problem. Drill geometry, flute design, coating, edge preparation, coolant configuration, and inspection requirements can then be matched to the application.

Which Custom Carbide Drill Type Do You Need?

Machining Requirement	Recommended Drill Type	Main Hole Feature	Typical Use
Pilot hole with center-support seat	Carbide Center Drill	Pilot + 60° center seat	Shafts, pins and rotating components
60° conical recess or chamfer	60° Spot Drill	60° conical feature	Center recesses and shallow countersinks
Positioning with 45° edge chamfer	90° Spot Drill	90° included angle	Chamfering and hole-edge preparation
Starting feature for compatible drill points	120° Spot Drill	Wide-angle spot	Precision drill-entry preparation
Multiple diameters in one operation	Carbide Step Drill	Stepped or combination hole	Drill, chamfer and counterbore combinations
Flat hole bottom or difficult entry	Flat Bottom Drill	Flat-bottom feature	Blind holes, inclined or curved surfaces
Two cutting ends on one tool	Double-Ended Drill	Dual cutting ends	Repetitive and high-volume machining
Special dimensions or combined profiles	Fully Custom Drill	Drawing-defined geometry	Non-standard component requirements

Machining Requirement

Recommended Drill Type

Main Hole Feature

Typical Use

Pilot hole with center-support seat

Carbide Center Drill

Pilot + 60° center seat

Shafts, pins and rotating components

60° conical recess or chamfer

60° Spot Drill

60° conical feature

Center recesses and shallow countersinks

Positioning with 45° edge chamfer

90° Spot Drill

90° included angle

Chamfering and hole-edge preparation

Starting feature for compatible drill points

120° Spot Drill

Wide-angle spot

Precision drill-entry preparation

Multiple diameters in one operation

Carbide Step Drill

Stepped or combination hole

Drill, chamfer and counterbore combinations

Flat hole bottom or difficult entry

Flat Bottom Drill

Flat-bottom feature

Blind holes, inclined or curved surfaces

Two cutting ends on one tool

Double-Ended Drill

Dual cutting ends

Repetitive and high-volume machining

Special dimensions or combined profiles

Fully Custom Drill

Drawing-defined geometry

Non-standard component requirements

Choose by Workpiece Material

Different workpiece materials require different drill geometry, coating direction, edge preparation, and coolant strategy. Select the suitable standard carbide drill series according to material behavior, hole depth, chip formation, and production conditions.

For Steel

Challenges: Tool wear and unstable chip evacuation.

Recommended: Wear-resistant coating and stable flute geometry.

For Stainless Steel

Challenges: Work hardening, cutting heat, and chip adhesion.

Recommended: Sharp edges, suitable coating, and effective coolant delivery.

For Aluminum Alloy

Challenges: Long chips, material adhesion, and burr formation.

Recommended: Sharp geometry, polished flutes, and DLC or uncoated options.

For Cast Iron

Challenges: Abrasive wear, powdery chips, and edge chipping.

Recommended: Strong edge geometry and wear-resistant coating.

For Titanium Alloys

Challenges: Heat concentration, adhesion, and high cutting load.

Recommended: Heat-resistant coating, reinforced edges, and internal coolant support.

Typical Applications

Frequently Asked Questions

What information is required for a custom carbide drill?

Please provide the workpiece material, hole diameter, hole depth, hole profile, dimensional tolerance, blind or through-hole requirement, entry-surface condition, machine information, coolant method, and expected quantity. A component drawing or existing tool specification is especially helpful.

Can Landun manufacture from an existing drill sample?

Yes. An existing drill sample, drawing, product photo, measurement report, or tool specification can be used as the starting point for engineering review and replacement development.

What is the difference between a custom drill and a standard drill?

A standard drill uses an established diameter, length, and geometry for common drilling applications. A custom drill is developed for special dimensions, hole profiles, materials, machine conditions, or process requirements.

Can several hole features be combined into one drill?

Yes. Depending on the application, a custom tool can combine drilling, stepping, chamfering, counterboring, pilot features, or flat-bottom features in one tool.

Can custom drills include internal coolant?

Yes. Internal-coolant configurations can be reviewed for blind holes, through holes, deeper drilling, difficult chip evacuation, and heat-sensitive applications.

Which workpiece materials are supported?

Custom drill solutions can be reviewed for steel, stainless steel, cast iron, aluminum and non-ferrous materials, titanium alloys, selected difficult-to-machine materials, and selected hardened-steel applications.

Can you reproduce the same drill for repeat orders?

Yes. After the drawing, geometry, coating, edge preparation, marking, and inspection requirements are approved, the confirmed specification can be retained for repeat production.

Should I choose a center drill or a spot drill?

Choose a center drill when a pilot hole and conical center-support seat are required together. Choose a spot drill when the main requirement is hole positioning, chamfering, countersinking, or controlled hole-entry preparation.

Tell Us Your Requirements

Contact Landun CNC Tool for standard, micro, deep-hole, internal-coolant, flat-bottom, step, and custom solid carbide drills. Send us your drawing, existing tool sample, workpiece material, and hole requirements, and our team will provide an application review and quotation.

Email info@landuntool.com

WhatsApp 8618068789495

Phone +86 18068789495

Address Building 2, No. 35 Taihangshan Road, Xixiashu Town, Xinbei District, Changzhou, China

Custom Carbide Drills

Category Overview