PRECIMILL / TOOLING CATALOGUE

AI-generated main illustration of finish boring cartridge for 66.9-87.1 mm bores; not a photograph or technical drawing

SERIES ILLUSTRATION · CHECK MODEL SPECIFICATIONS

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AI-generated detail illustration of finish boring cartridge for 66.9-87.1 mm bores; not a photograph or technical drawing

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AI-generated application illustration of finish boring cartridge for 66.9-87.1 mm bores; not a photograph or technical drawing

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Boring Tools

Fine Boring Cartridge 66.9-87.1 mm, Connection 36, TPGH1103

Name: Fine Boring Cartridge 66.9-87.1 mm, Connection 36, TPGH1103
SKU: CAT-WEB-060317

PRECIMILL enquiry item

Finish boring cartridge for 66.9-87.1 mm bores, connection 36 and TPGH1103 inserts. Compare dimensions and request a configuration-specific quotation.

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

Product typeFinish boring cartridge

Boring diameter range (mm)66.9-87.1

Connection designation36 (system designation, not a measured diameter)

Insert designation familyTPGH1103 (full grade and nose-radius suffix not specified)

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Internal reference is included for enquiry tracking; it is not a manufacturer model number.
Price, availability and supply scope confirmed by quotation.

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01 / TECHNICAL DATA

Know the specifications.

Published technical specifications
Parameter	Specification
Product type	Finish boring cartridge
Boring diameter range (mm)	66.9-87.1
Connection designation	36 (system designation, not a measured diameter)
Insert designation family	TPGH1103 (full grade and nose-radius suffix not specified)
Insert shape	T - Triangle
Clamping type	S - Screw-On
Cut type	Finishing
Measurement system	Metric - ISO
Overall length (OAL, mm)	41.14
Insert inscribed circle diameter (IC, mm)	6.35
Insert hole diameter (D1, mm)	3.4
Insert cutting edge length (L10, mm)	11.0

02 / PRODUCT OVERVIEW

Check the configuration.

This screw-on finish boring cartridge supports a triangular insert and is specified for a compatible boring-head assembly. The selected connection designation is 36; its published boring diameter range is 66.9-87.1 mm.

The cartridge overall length is 41.14 mm. Insert-seat data includes a 6.35 mm inscribed circle, 3.4 mm insert hole and 11.0 mm cutting edge length. These are insert dimensions, not the mounting-hole diameter.

This enquiry covers the cartridge selection only. A full boring head, shank, insert grade or accessory package is not established by the available technical data. Send the mating-head drawing and machining requirements with your enquiry.

Applications

Fine finishing of existing bores within the 66.9-87.1 mm diameter range using a compatible boring-head assembly. Material suitability depends on the selected insert grade, geometry and cutting conditions; no material-specific performance claim is made.

Selection guidance

Match connection designation 36 and the mating-head drawing first. Check the 41.14 mm overall length, insert seat and screw clearance. Then specify the complete TPGH1103 insert suffix, bore depth, tolerance, workpiece material and order quantity. No cutting speed or maximum RPM is published for this selection.

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 is the selected boring range and connection?

This selection uses connection designation 36 with a published boring diameter range of 66.9-87.1 mm. The connection designation is a system code, not a measured shank diameter.

Which insert does this cartridge use?

The published insert designation family is TPGH1103. The complete nose-radius, chipbreaker and grade suffix is not supplied; select these for the material and finish requirement. Inclusion of inserts is not established.

Is this a complete boring head or an interchangeable universal cartridge?

It is a cartridge, not a complete boring head. Match the mating head, mounting geometry, orientation and fastener dimensions before ordering. A shared connection number alone does not establish interchangeability.

CONTINUE EXPLORING

Fine Boring Cartridge 66.9-87.1 mm, Connection 36, TPGH1103

Know the specifications.

Check the configuration.

Applications

Selection guidance

Product illustrations

Clarify the details.

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