Feature type first
Through holes, blind holes, threaded holes, locating holes, counterbores, and countersinks are identified before the process path is confirmed.
Drilling and tapping services
Drilling and tapping, built around clear hole and thread intent.
Hole type, depth, position, thread callout, access direction, and edge condition all shape the manufacturing review. Share the model and drawing so Pearson can understand how each feature functions and confirm the project path before acceptance.
- Complete hole callouts
- Human-managed follow-up
- Scope confirmed per quote
Capability review
This page describes common request types. Available processes, equipment, tolerances, inspection, documentation, and fulfillment are confirmed for each quote.
Overview
A clearer way to plan holes, threads, and fastener seats.
A useful drilling and tapping review separates each feature by function. A clearance hole, blind thread, dowel location, counterbore, and countersink may look similar in a model, but the drawing should explain the depth, fit, datum relationship, and assembly intent that make each one different.
Depth and access context
Entry direction, usable thread depth, total drilled depth, breakout, and edge condition help reveal manufacturing questions early.
Pattern and datum intent
Functional hole locations, mating hardware, dowel fits, and inspection expectations belong in the request instead of being inferred later.
Fulfillment review
Requests are reviewed manually. The fulfillment route and availability are confirmed before acceptance.
Quote inputs
The information that starts a useful hole-and-thread review.
You do not need every answer before submitting. Share what is known and mark the rest for follow-up.
- Common request types
- Through holes, blind holes, clearance holes, tapped holes, locating holes, counterbores, countersinks, spotfaces, and hole patterns
- Helpful files
- STEP or STP model, PDF drawing, hole table when available, dimensioned sketch, or clear photos of an existing part
- Feature definition
- Hole type, diameter or fit, depth, thread standard and class, access direction, fastener-seat details, pattern location, and datum intent
- Project context
- Material grade or preference, quantity, target timing, finish, burr or edge requirements, and inspection or documentation needs
Interactive hole review
Explore the details that make a hole callout complete.
Select a feature on the sample fixture plate to see what the model and drawing should communicate before the project path is confirmed.
Sample hole-feature plate
The numbered markers match the feature groups and review panel.
Illustrative example only; markers identify review features, not dimensions or tolerances.
Hole and thread review
What should the drawing explain?
Choose a feature group to see the details that help clarify the request.
Hole diameter, depth, and functional intent
The feature definition should distinguish what passes through the part, what stops at depth, and whether diameter or fit controls the assembly.
- Diameter, fit, and intended function
- Through condition or total blind-hole depth
- Entry, exit, edge-break, and burr requirements
Helpful drawing detail
Use a section view or depth callout when the blind-hole bottom or breakout condition is not obvious from the model.
Process fit, equipment fit, achievable tolerances, inspection, documentation, fulfillment, and timing are confirmed from the project information during quote review.
Capabilities
Common drilling and tapping request patterns, kept easy to scan.
These examples help identify the likely starting point. Process fit, equipment fit, achievable tolerances, and availability are confirmed from the project files.
Through, blind, clearance, and locating holes
Hole typePlates, brackets, housings, fixtures, adapters, and repair components with hole features defined by depth, fit, location, and function.
Tapped and internally threaded features
ThreadsThrough or blind thread requests with complete standards, size, class, usable depth, access direction, and mating intent.
Counterbores, countersinks, and spotfaces
Fastener seatsRecessed or flush fastener features defined by their seat geometry, hardware, surface relationship, and edge requirements.
Hole patterns, dowel locations, and datum relationships
PatternsAssembly-critical patterns and locating features reviewed with their functional origin, fit, position, and inspection intent.
Quote workflow
From files to a confirmed holemaking path.
A short, human-managed review keeps feature definitions and open questions visible before work is accepted.
- 01
Share the part
Upload the model, drawing, photos, quantity, material preference, and known hole or thread requirements.
- 02
Review the features
Hole types, depths, threads, fastener seats, pattern relationships, edges, and inspection intent are organized for follow-up.
- 03
Confirm the path
Process fit, equipment fit, tolerances, fulfillment, timing, and remaining questions are resolved before acceptance.
- 04
Coordinate the project
Approved files and requirements become the reference point for project communication and delivery planning.
Drawing readiness
Small decisions that make holes and threads easier to review.
Clear feature intent is more useful than applying close requirements everywhere.
Design intent before assumptions
- 01
Distinguish every hole by function.
Identify whether each feature provides clearance, location, a thread, a passage, or a fastener seat instead of relying on geometry alone.
- 02
Specify threads completely.
Include the thread standard, size, pitch, class, hand, usable depth, and any insert or verification requirement.
- 03
Separate usable thread depth from total drilled depth.
For blind holes, show the required complete thread and the clearance available beneath it as separate requirements.
- 04
Dimension counterbores and countersinks directly.
Provide diameter and depth, or angle and major diameter, along with the mating fastener and seat intent.
- 05
Anchor functional patterns to clear datums.
Show which faces or features locate the assembly and where hole position or dowel fit affects function.
- 06
State access, breakout, and edge intent.
Identify the entry direction, restricted access, exit-side burr concerns, chamfers, deburring, and finish areas that matter.
Materials
Common materials for drilling and tapping review.
Grade, form, condition, finish, and availability are confirmed for each request.
Material guide
Aluminum
Plates, brackets, housings, fixtures, adapters, and lightweight parts with holes, threads, and fastener seats.
6061-T6 · 7075-T6 examples
View materialMaterial guide
Tool steel
Fixture plates, tooling details, wear components, and repair-related parts where grade and condition belong in the review.
A2 · D2 · O1 · H13 examples
View materialMaterial guide
Stainless steel
Corrosion-resistant brackets, housings, fittings, hardware, and equipment components with defined hole and thread requirements.
303 · 304 · 316/316L examples
View materialMaterial guide
Engineering plastics
Guards, guides, spacers, fixtures, non-metallic plates, and lightweight components with assembly features.
Acetal · UHMW · Nylon · PTFE examples
View materialContinue exploring
Related services and application guides.
Tapping & Threading
Review thread-focused requirements such as standard, class, depth, and verification intent.
CNC Milling
Review pockets, faces, datum relationships, and hole features on prismatic parts.
Machining Repairs
Review damaged threads, rework holes, and controlled feature changes.
Custom Jobs
Review one-off, replacement, prototype, and unusual machining requests.
Industrial Machinery & Equipment
See common fixture-plate, bracket, and equipment-component applications.
Robotics & Automation
See common mounting-pattern, locating, fixture, and automation applications.
FAQ
Drilling and tapping quote questions.
A STEP or STP model and matching PDF drawing are the best starting pair. Add quantity, material preference, a hole table when available, thread callouts, depths, fastener-seat details, pattern datums, finish, inspection or documentation needs, and target timing.
Include the thread standard, size, pitch, class, hand, usable thread depth, total blind-hole depth when applicable, access direction, and any insert or verification requirement.
Identify whether the feature passes through the part or stops at a controlled depth, and define diameter or fit, depth origin, bottom or breakout condition, and edge requirements where they affect function.
Show the functional datums, pattern dimensions, locating-hole fits, and positional requirements that affect assembly. Achievable tolerances and the inspection approach are confirmed from the project files.
Include the seat diameter, depth or angle, mating fastener, flush or locating intent, critical dimensions, and documentation expectations. Scope and availability are confirmed before acceptance.
Requests are reviewed manually. The fulfillment route and availability are confirmed before acceptance.
Start with the files you have
Ready to review your drilling and tapping requirements?
Share the model, drawing, hole table, photos, and known requirements. Pearson will follow up on the details that still need confirmation.
Request a drilling quote