Drilling Support for Sensors, Optical & Communication Components

Sensor, optical, and communication components contain alignment holes, locating holes, mounting holes, micro holes, blind holes, stepped holes, flat-bottom features, and threaded-hole preparation.

Small dimensions and close positional tolerances require low runout and stable drill entry, while optical mounts and transceiver housings demand consistent relationships between related features. Thin-wall structures and aluminum or copper-alloy materials may also create burrs, deformation, chip adhesion, and unstable hole quality.

Landun CNC Tool provides standard and custom carbide drill solutions based on drawings, materials, hole structures, tolerances, machine conditions, and production requirements.

application

Core Machining Challenges

MICRO-HOLE ACCURACY AND LOW-RUNOUT STABILITY

MACHINING CHALLENGE

Sensor housings, optical-module parts, transceiver components, positioning elements, and compact communication parts may contain very small mounting, locating, vent, guide, or interface holes.

Hole-size variation, poor position accuracy, unstable surface quality, drill deviation, or premature micro-drill breakage may affect assembly and component consistency.

WHY IT HAPPENS

Small-diameter carbide drills have limited rigidity and are highly sensitive to spindle runout, holder condition, excessive working length, unstable component support, unsuitable cutting parameters, and restricted chip evacuation.

Even minor tool deflection may create significant dimensional variation in miniature components.

LANDUN TOOLING RESPONSE

Precision-ground micro carbide drills, low-runout toolholding, short working lengths, rigid fixturing, controlled feed, and reliable chip removal help maintain stable hole diameter and position.

Drill geometry, flute design, edge preparation, coating, and working length should be selected according to the workpiece material, hole diameter, drilling depth, and tolerance.

RECOMMENDED DRILL SERIES

  • 3xD micro carbide drills
  • 5xD micro carbide drills
  • Small-diameter standard carbide drills
  • Custom micro drills for special diameters

ALIGNMENT-HOLE POSITION AND FEATURE CONCENTRICITY

MACHINING CHALLENGE

Lens mounts, optical positioning parts, sensor supports, transceiver housings, and precision interface components may contain locating holes, dowel holes, guide holes, and related mounting features.

Variation in hole position, diameter, or concentricity may affect component alignment, insert positioning, optical-axis relationships, assembly repeatability, and mating-part fit.

WHY IT HAPPENS

Unstable drill entry, excessive tool overhang, spindle runout, fixture movement, tool deflection, and repeated positioning operations may create accumulated errors between related features.

Small entry errors become more significant when the hole is deep or closely related to another locating surface.

LANDUN TOOLING RESPONSE

Accurate spotting, rigid workholding, short tool overhang, low-runout holders, controlled drill geometry, and stable cutting parameters help improve positional repeatability.

Drawing-based custom drills may combine pilot, locating, and shoulder features to reduce separate machining operations and improve feature relationships.

RECOMMENDED DRILL SERIES

  • Carbide spot drills
  • 3xD and 5xD standard carbide drills
  • Short-length carbide drills
  • Drawing-based custom carbide drills

BURRS AND DEFORMATION IN THIN-WALL COMPONENTS

MACHINING CHALLENGE

Optical-module housings, transceiver shells, sensor enclosures, lightweight supports, and compact communication components may contain thin walls or unsupported exit surfaces.

Drilling these parts may produce exit burrs, edge breakout, local deformation, hole distortion, or damage around nearby mounting and interface surfaces.

WHY IT HAPPENS

Thin sections provide limited resistance to drilling force. Worn cutting edges, excessive feed near breakthrough, unstable clamping, high runout, or unsuitable drill-point geometry may push the material outward instead of cutting it cleanly.

Excessive clamping pressure may also distort the component before drilling begins.

LANDUN TOOLING RESPONSE

Sharp cutting geometry, controlled component support, low-runout toolholding, suitable point geometry, and reduced breakthrough feed help limit burr formation and deformation.

Short, rigid drills are preferred where the component geometry and hole depth allow.

RECOMMENDED DRILL SERIES

  • 3xD standard carbide drills
  • Micro carbide drills
  • Flat-bottom carbide drills
  • Custom drills for thin-wall components

CHIP CONTROL IN ALUMINUM AND COPPER ALLOYS

MACHINING CHALLENGE

Optical-module housings, transceiver bodies, sensor components, heat-conductive supports, and communication interfaces may be manufactured from aluminum, copper alloys, brass, or stainless steel.

Aluminum and copper alloys may create adhesive or continuous chips, built-up edge, flute blockage, poor hole surfaces, exit burrs, or unstable tool life.

WHY IT HAPPENS

Soft or ductile materials may adhere to unsuitable cutting edges and flute surfaces. Limited flute space, worn tools, insufficient coolant or air delivery, excessive runout, and unsuitable feed can restrict chip evacuation.

LANDUN TOOLING RESPONSE

Sharp material-specific geometry, smooth or low-friction flute surfaces, suitable edge preparation, stable feed, and effective coolant or air delivery help reduce chip adhesion.

Internal coolant may be considered for deeper blind holes or small passages with restricted chip evacuation.

RECOMMENDED DRILL SERIES

  • Carbide drills for aluminum alloys
  • Carbide drills for brass and copper alloys
  • Internal-coolant carbide drills
  • Custom drills for high-volume precision parts

BLIND, STEPPED AND FLAT-BOTTOM FEATURE ACCURACY

MACHINING CHALLENGE

Sensor housings, lens mounts, optical interfaces, transceiver components, and positioning parts may require blind holes, stepped holes, counterbores, flat-bottom recesses, threaded-hole preparation, or several related diameters.

Variation in diameter, shoulder position, depth, or concentricity can affect component location, insert installation, fastener seating, sensor position, and final assembly consistency.

WHY IT HAPPENS

Using several separate tools increases tool changes and positioning operations.

Tool deflection, drill-point allowance, unstable entry, inconsistent tool length, and accumulated positioning errors may affect the relationship between the pilot hole, shoulder, counterbore, and locating diameter.

LANDUN TOOLING RESPONSE

Spot, step, flat-bottom, chamfer, and combined custom carbide drills can produce several related features in fewer machining operations.

This helps improve feature concentricity, shoulder consistency, bottom depth, thread preparation, and production efficiency.

RECOMMENDED DRILL SERIES

  • Carbide spot drills
  • Flat-bottom carbide drills
  • Step and chamfer carbide drills
  • Drawing-based combined carbide drills

Typical Sensor, Optical & Communication Component Drilling Applications

Sensor Housings & Mounting Components
Sensor Housings & Mounting Components

Typical components include pressure-sensor housings, position-sensor bodies, temperature-sensor supports, detection-device housings, mounting bases, and compact sensor interfaces.

  • MACHINING CHALLENGESSmall hole diameters, limited wall thickness, close positional tolerances, burr-sensitive edges, restricted chip evacuation, and repeatable sensor positioning.
  • RECOMMENDED DRILL SERIESMicro carbide drills, 3xD and 5xD standard carbide drills, carbide spot drills, flat-bottom drills, and custom carbide drills.
Optical Modules & Transceiver Housings
Optical Modules & Transceiver Housings

Common applications include optical-module housings, transceiver bodies, communication-module frames, compact enclosures, internal supports, and mounting interfaces.

  • MACHINING CHALLENGESThin-wall deformation, aluminum chip adhesion, multi-hole position accuracy, small feature spacing, exit burrs, and stable batch consistency.
  • RECOMMENDED DRILL SERIESStandard carbide drills, micro carbide drills, carbide spot drills, flat-bottom drills, and drawing-based custom carbide drills.
Lens Mounts & Optical Positioning Parts
Lens Mounts & Optical Positioning Parts

Typical components include lens mounts, optical holders, alignment rings, positioning blocks, guide components, focusing supports, and precision mounting parts.

  • MACHINING CHALLENGESHole-position accuracy, feature concentricity, shoulder depth, related-feature alignment, restricted fixturing space, and consistent optical-component positioning.
  • RECOMMENDED DRILL SERIESMicro carbide drills, carbide spot drills, standard carbide drills, flat-bottom drills, step drills, and combined custom drills.
Communication Interfaces & Compact Precision Parts
Communication Interfaces & Compact Precision Parts

Typical applications include communication-equipment interfaces, module supports, coupling components, positioning inserts, miniature brackets, mounting parts, and compact precision assemblies.

  • MACHINING CHALLENGESCompact dimensions, small-hole accuracy, related-feature position, limited component rigidity, chip control, assembly consistency, and frequent product variation.
  • RECOMMENDED DRILL SERIESMicro carbide drills, standard carbide drills, internal-coolant drills, flat-bottom drills, and drawing-based custom carbide drills.

Standard Carbide Drills
Standard Carbide Drills

For mounting holes, locating holes, threaded-hole preparation, blind holes, through holes, and general production drilling in sensor, optical, and communication components.

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Micro Carbide Drills
Micro Carbide Drills

For alignment holes, sensor holes, locating holes, guide holes, miniature mounting features, and closely positioned precision holes requiring low runout.

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Deep Hole Carbide Drills
Deep Hole Carbide Drills

For deeper blind holes, small axial holes, extended mounting features, compact housings, and precision parts requiring improved coolant delivery and chip evacuation.

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Custom Carbide Drills
Custom Carbide Drills

For alignment features, stepped holes, flat-bottom recesses, counterbores, special diameters, restricted entry conditions, and combined machining operations.

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Information to Share with Our Engineering Team

A component drawing and basic machining information help us evaluate the hole structure, select the drill series, and determine whether a standard or custom solution is more suitable.
    INFORMATION            WHY IT MATTERS
Component drawing Confirms hole geometry, entry angle, step features, tolerances, curved surfaces, and special requirements.
Workpiece material and hardness Helps determine drill geometry, carbide grade, coating direction, edge preparation, and cutting parameters.
Hole diameter, depth, and type Defines drill size, working length, depth-to-diameter ratio, and blind- or through-hole requirements.
Tolerance and surface finish Helps evaluate dimensional accuracy, hole quality, and finishing requirements.
Machine, holder, and coolant conditions Helps assess runout, rigidity, coolant pressure, and chip-evacuation stability.
Current problem and production target Clarifies tool wear, burrs, chip packing, deviation, breakage, tool-life, or efficiency targets.

Engineering Support from Drawing to Production

Landun provides engineering support from application review and drill recommendation to precision manufacturing, inspection, sample validation, and repeat supply.
Application Review
Application Review

Review the component drawing, workpiece material, hole structure, machine conditions, and current drilling problem.

Drill Recommendation
Drill Recommendation

Select a suitable standard drill series or develop a custom drill based on hole depth, tolerance, entry conditions, and machining requirements.

Precision Manufacturing & Inspection
Precision Manufacturing & Inspection

Produce the drill with controlled geometry, edge preparation, coating selection, and multi-stage inspection to support consistent quality.

Sample Validation & Repeat Supply
Sample Validation & Repeat Supply

Support sample testing, specification confirmation, and stable repeat production after the drill solution is approved.

Manufacturing & Inspection Capabilities

Precision grinding, controlled edge preparation, application-specific coating selection, and multi-stage inspection support stable drill quality from samples to repeat production.
Precision Grinding
Precision Grinding

Walter 5-axis grinding supports stable drill-point geometry, flute consistency, diameter accuracy, and shank concentricity.

Edge Preparation
Edge Preparation

Controlled edge preparation helps improve cutting-edge consistency, coating adhesion, wear resistance, and tool-life stability.

Application-Specific Coating
Application-Specific Coating

Coating selection is matched to the workpiece material and drilling conditions to improve wear resistance, heat control, and cutting stability.

Dimensional & Visual Inspection
Dimensional & Visual Inspection

HELICHECK PLUS and 150× / 300× visual inspection help verify dimensions, cutting edges, coating appearance, and overall tool condition.

Landun Cnc Tool

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.

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