PRECIMILL / TOOLING CATALOGUE

AI-generated illustration of fine boring head 86.9-154.1 mm: full product view

SERIES ILLUSTRATION · CHECK MODEL SPECIFICATIONS

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AI-generated illustration of fine boring head 86.9-154.1 mm: visible component detail

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AI-generated illustration of fine boring head 86.9-154.1 mm: conceptual workpiece context; not a machining setup

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Boring Tools

Fine Boring Head 86.9-154.1 mm, 46.0 mm Pilot

Name: Fine Boring Head 86.9-154.1 mm, 46.0 mm Pilot
SKU: CAT-WEB-010281

PRECIMILL enquiry item

Fine Boring Head for 86.9-154.1 mm bores with a 46.0 mm pilot, 87.0 mm body length and through-tool coolant. Request an application-specific quote.

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AI-generated reference illustrations, not product photographs, dimensional drawings or performance evidence.

Product typeFine Boring Head

Boring diameter range (mm)86.9-154.1

Connection designation46 (system designation)

Cut typeFinishing

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Internal reference is included for enquiry tracking; it is not a manufacturer model number.
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01 / TECHNICAL DATA

Know the specifications.

Published technical specifications
Parameter	Specification
Product type	Fine Boring Head
Boring diameter range (mm)	86.9-154.1
Connection designation	46 (system designation)
Cut type	Finishing
Measurement system	Metric - ISO
Body diameter (BD, mm)	90.0
Pilot / shank diameter (DMM, mm)	46.0
Body length (BL, mm)	87.0
Overall length (OAL, mm)	133.0
Through-tool coolant	Yes
Listed working ranges with matching cartridges (mm)	86.9-116.1; 104.9-134.1; 124.9-154.1

02 / PRODUCT OVERVIEW

Check the configuration.

This fine boring head is specified with a 46.0 mm pilot and a 90.0 mm body diameter. Its 87.0 mm body length and 133.0 mm overall length help assess the assembly envelope before selecting a mating shank.

The listed boring diameter coverage is 86.9-154.1 mm. The individual working ranges are 86.9-116.1 mm, 104.9-134.1 mm, 124.9-154.1 mm; each requires the corresponding cartridge configuration. The head alone does not establish the complete cutting assembly. Through-tool coolant is specified. Cartridge, insert grade, shank and accessory inclusion are not established by the available item data.

Applications

Finishing existing bores to the required final diameter within the listed 86.9-154.1 mm assembly range. Select the matching cartridge and insert for the material and bore depth.

Selection guidance

Match the 46.0 mm pilot geometry and connection designation 46, then compare the 90.0 mm body diameter, 87.0 mm body length and overall assembly reach with the part drawing. Specify the required bore diameter, tolerance, material and coolant arrangement. No maximum speed or accuracy rating is established.

PRECIMILL is a sales business. Contact Linghu Chong, Product Manager, to discuss application requirements and quotation. No manufacturer affiliation or in-house manufacturing claim is made.

Content updated: 28 October 2026

03 / DIMENSION REFERENCE

Product illustrations

04 / BEFORE ORDERING

Clarify the details.

What boring diameters does this head cover?

The listed coverage is 86.9-154.1 mm. Its working ranges are 86.9-116.1 mm; 104.9-134.1 mm; 124.9-154.1 mm, using the corresponding cartridge configuration.

What is the pilot diameter and body length?

The pilot diameter is 46.0 mm and the body length is 87.0 mm. Connection designation 46 identifies the system size; the mating geometry must also match.

Does the head support through-tool coolant, and what is included?

Through-tool coolant is specified. The available item data does not establish inclusion of a shank, cartridges, insert grades or other accessories; these are separate quotation scope items.

CONTINUE EXPLORING

Fine Boring Head 86.9-154.1 mm, 46.0 mm Pilot

Know the specifications.

Check the configuration.

Applications

Selection guidance

Product illustrations

Clarify the details.

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