PRECIMILL / TOOLING CATALOGUE

AI-generated main illustration of finish boring cartridge for 30.9-40.1 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 30.9-40.1 mm bores; not a photograph or technical drawing

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AI-generated application illustration of finish boring cartridge for 30.9-40.1 mm bores; not a photograph or technical drawing

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Boring Tools

Fine Boring Cartridge 30.9-40.1 mm, Connection 18, TPGH0802

Name: Fine Boring Cartridge 30.9-40.1 mm, Connection 18, TPGH0802
SKU: CAT-WEB-060314

PRECIMILL enquiry item

Finish boring cartridge for 30.9-40.1 mm bores, connection 18 and TPGH0802 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)30.9-40.1

Connection designation18 (system designation, not a measured diameter)

Insert designation familyTPGH0802 (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)	30.9-40.1
Connection designation	18 (system designation, not a measured diameter)
Insert designation family	TPGH0802 (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)	21.73
Insert inscribed circle diameter (IC, mm)	4.76
Insert hole diameter (D1, mm)	2.5
Insert cutting edge length (L10, mm)	8.0

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 18; its published boring diameter range is 30.9-40.1 mm.

The cartridge overall length is 21.73 mm. Insert-seat data includes a 4.76 mm inscribed circle, 2.5 mm insert hole and 8.0 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 30.9-40.1 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 18 and the mating-head drawing first. Check the 21.73 mm overall length, insert seat and screw clearance. Then specify the complete TPGH0802 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 18 with a published boring diameter range of 30.9-40.1 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 TPGH0802. 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 30.9-40.1 mm, Connection 18, TPGH0802

Know the specifications.

Check the configuration.

Applications

Selection guidance

Product illustrations

Clarify the details.

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