Boring Tools | McMaster-Carr

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	Cut Type Cut Type

	Boring
	Internal Profiling
	Internal Grooving

	System of Measurement System of Measurement

Inch

Metric

	Shank Diameter Shank Diameter

	For Use On For Use On

	Minimum Hole Diameter Minimum Hole Diameter

	Cut Direction Cut Direction

Right Hand

Neutral

Left Hand

	Maximum Hole Depth Maximum Hole Depth

	Shank Type Shank Type


Round	Square

R8 Taper

	Material Material

Carbide

Steel

	Material Grade Material Grade

Micrograin

	Overall Length Overall Length

	End Cutting Edge Angle End Cutting Edge Angle

	For Insert Shape For Insert Shape


Diamond	Triangle

	Side Cutting Edge Angle Side Cutting Edge Angle

	End Relief Angle End Relief Angle

	Back Rake Angle Back Rake Angle

0°

7°

12°

	Side Rake Angle Side Rake Angle

0°

6°

	Insert Shape Insert Shape


Triangle	Diamond

	Side Relief Angle Side Relief Angle

	For Insert Code For Insert Code

	Tip Thickness Tip Thickness

	Tip Length Tip Length

	Tip Width Tip Width

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524 Products

Lathe Tools

Small-Diameter Round-Shank
Boring Lathe Tools

These are the smallest boring tools we offer.

Round-Shank Boring Lathe Tools

Use these tools to enlarge existing holes to precise diameters.

Long-Reach Round-Shank
Boring Lathe Tools

The long steel shank on these tools can reach farther inside the workpiece than standard boring tools.

Square-Shank Boring Lathe Tools

Insert the square shank of these tools into the slot of a boring tool holder and use them to enlarge existing holes to precise diameters.

Internal Grooving Lathe
Tools for Retaining Rings

Long-Reach Internal Grooving
Lathe Tools for Retaining Rings

An extra-long shank provides additional reach.

Internal Profiling Lathe Tools

Contour the interior wall of a hollow workpiece.

Long-Reach Internal
Profiling Lathe Tools

An extra-long shank provides additional reach.

Quick-Change Lathe
Tools and Holders

Reduce tooling setup time—install the holder once and alternate between applications by switching out the bit.

Boring Lathe Tool Sets

Use these tools to enlarge existing holes to precise diameters.

Long-Reach Boring Lathe Tool Sets

The long steel shank on these tools can reach farther inside the workpiece than standard boring tools.

Small-Diameter Boring
Lathe Tool Sets

These sets contain some of the smallest boring tools we offer.

Boring Lathe Tool Holders

Insert boring tools into a 45° or 90° slot at either end of the holder.

Indexable Lathe Tools

Boring Carbide Insert Holders

These holders conform to ANSI standards.

Boring Carbide Insert
Holders with Coolant Hole

Deliver coolant through the holder to keep workpieces cool while boring tough materials, such as steel, stainless steel, and nickel-based alloys.

Carbide Inserts for Boring Carbide
Insert Holders with Coolant Hole

Pair one of these inserts with a compatible boring carbide insert holder with coolant hole.

Economy Indexable Boring
Carbide Insert Holders

Use these tools to enlarge existing holes to precise diameters. They come with an insert installed. When one edge of the insert dulls, rotate it to use a sharp edge.

Economy Indexable Boring
Carbide Insert Holder Sets

These sets have a variety of indexable boring insert holders with carbide inserts and a wood storage stand. When one edge of a tool's insert dulls, rotate it to use a sharp edge to enlarge existing holes to precise diameters.

Internal Profiling
Carbide Insert Holders

Contour the interior wall of a hollow workpiece when you pair a holder with a compatible insert.

Carbide Inserts for Internal
Profiling Carbide Insert Holders

Combine a carbide insert with a compatible internal profiling holder to create a tool that can contour the interior wall of a hollow workpiece.

Boring Tool Holders for Milling Machines

Boring Tool Holders
for Milling Machines

Instead of widening a hole using a lathe, which turns the workpiece while the cutting tool stays still, use these holders to turn your boring bar in a milling machine and keep the workpiece stationary.

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Lathe Tools

Small-Diameter Round-ShankBoring Lathe Tools

Round-Shank Boring Lathe Tools

Long-Reach Round-ShankBoring Lathe Tools

Square-Shank Boring Lathe Tools

Internal Grooving LatheTools for Retaining Rings

Long-Reach Internal GroovingLathe Tools for Retaining Rings

Internal Profiling Lathe Tools

Long-Reach InternalProfiling Lathe Tools

Quick-Change LatheTools and Holders

Boring Lathe Tool Sets

Long-Reach Boring Lathe Tool Sets

Small-Diameter BoringLathe Tool Sets

Boring Lathe Tool Holders

Indexable Lathe Tools

Boring Carbide Insert Holders

Boring Carbide InsertHolders with Coolant Hole

Carbide Inserts for Boring CarbideInsert Holders with Coolant Hole

Economy Indexable BoringCarbide Insert Holders

Economy Indexable BoringCarbide Insert Holder Sets

Internal ProfilingCarbide Insert Holders

Carbide Inserts for InternalProfiling Carbide Insert Holders

Boring Tool Holders for Milling Machines

Boring Tool Holdersfor Milling Machines

Small-Diameter Round-Shank
Boring Lathe Tools

Long-Reach Round-Shank
Boring Lathe Tools

Internal Grooving Lathe
Tools for Retaining Rings

Long-Reach Internal Grooving
Lathe Tools for Retaining Rings

Long-Reach Internal
Profiling Lathe Tools

Quick-Change Lathe
Tools and Holders

Small-Diameter Boring
Lathe Tool Sets

Boring Carbide Insert
Holders with Coolant Hole

Carbide Inserts for Boring Carbide
Insert Holders with Coolant Hole

Economy Indexable Boring
Carbide Insert Holders

Economy Indexable Boring
Carbide Insert Holder Sets

Internal Profiling
Carbide Insert Holders

Carbide Inserts for Internal
Profiling Carbide Insert Holders

Boring Tool Holders
for Milling Machines