Tool Steel Machining Services

CNC milling, turning, grinding & rework of A2, D2, O1, H13, S7 tool steels.

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ISO 9001:2015

Made in Canada

40+

Years of Experience

5K+

Satisfied Customers

Overview

Tool steel machining demands precision and experience — especially in hardened and pre-hardened states. Pearson Manufacturing offers hybrid fulfillment of tool steel projects, with services completed either in-house or through our Canadian supplier network. From punches to mold cavities, we ensure exact results across A2, D2, O1, H13, S7, and more.

Our Capabilities

Our tool steel services — performed at our shop or through vetted Canadian partners — include:

CNC Milling: deep cavities, profiles & hole patterns in tool steel blocks
Turning: shafts, punches, dies & hardened round features
Surface Grinding: precision flatness & thickness control on hardened parts
Boring & Reaming: accurate hole finishing in heat-treated stock
Repair & Modification: weld buildup + post-machining for reused tooling
Prototyping: pre-hardened test parts or cavities before final hardening

Why Tool Steel?

Consistent tolerances in difficult-to-machine, hardened alloys
Extended tool life through precision surface finishes
Cost savings by repairing & modifying existing tooling
Reduced lead times with in-house roughing & finishing capabilities
Expert handling of pre- and post-heat-treated tool steel

Our Equipment

Tool steel machining is supported with equipment used in-house or at certified partner facilities:

3- & 4-axis CNC mills with carbide tooling for tool steel
Manual lathes & turret lathes for low-volume runs
Surface & cylindrical grinders with diamond wheels
Horizontal boring mills for large-format tool blocks
Precision boring bars & reamers for heat-treated stock
Welding stations for carbide weld repair & buildup

Tool Steel Grades

A2 – air-hardened for dimensional stability & toughness
D2 – high hardness & wear resistance
O1 – oil-hardened for simple dies & tooling
H13 – hot-work steel for die-casting & injection molds
S7 – shock-resistant for impact tools & punches

Typical Applications

Mold cavities, die inserts & forming tools
Punch & die sets for stamping operations
Fixture plates & hardened tooling plates
Knife & shear blades with tight edge tolerances
Repair & rework of worn or damaged tool components

Frequently Asked Questions

What hardness range can you machine?

We machine tool steels from soft state up to HRC 60 using optimized carbide and CBN tooling — either in-house or through qualified Canadian partners.

Can you repair cracked or chipped tool steel?

Yes. Whether performed on-site or through a certified partner shop, we coordinate weld buildup, prep, and finish machining to restore tool steel components.

What tolerances can you hold in hardened steel?

Typical tolerances are ±0.002″ (±0.05 mm) after hardening. On request, we can achieve ±0.001″ for select geometries depending on method and setup.

Do you offer pre-hardened prototyping?

Yes — we support both soft-state and pre-hardened prototypes, whether machined internally or via our tool steel supplier network.

Is this manufactured in-house?

Some tool steel work is completed in-house, while other jobs are fulfilled through our Canadian machining partners. Pearson manages sourcing, inspection, and logistics throughout the process.