TORX PLUS 15IP Tool Screw | M4×9 (0.7 Pitch)

TORX PLUS 15IP tool screw in M4×9 with 0.7 mm pitch, sized for inserts with a 15IP socket.

Key specifications

Installationtorqued to the tool maker's value
StandardGB/T 3098.1, ISO 16047
Typical substrateindexable carbide inserts
Key inspectionshead cone, recess, thread gauging, hardness
Thread SizeM4 × 9mm
Drive TypeTorx Plus 15IP

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Product overviewOverview

A tool screw holds the carbide insert in its pocket by preload: the resulting friction resists the cutting force. Tool screws are chosen by socket size rather than head size, and 15IP sits above the 8IP used on smaller inserts. The larger socket carries more torque, which matters because clamp force on the insert is set by the screw, not by the pocket geometry.

installed by torqued to the tool maker's value.

Key featuresFeatures

15IP socket for larger inserts, torqued to the value published for the holder.
Alloy steel quenched and tempered to class 12.9, with strength and hardness to GB/T 3098.1.
Star recess transmits the tool maker's torque without cam-out in a restricted head diameter.
Head cone seats the insert concentrically, so tip position repeats after a change.

Typical applicationsApplications

CNC turning insert clamping
Face mills and indexable inserts
Drill and reamer clamping

Selection notesSelection

Take the torque from the insert and holder data, not from a general screw table; the 15IP socket tolerates more torque than the insert seat can.

Frequently asked questionsFAQ

How tight should a 15IP tool screw be?

Use the value published for the insert and holder rather than a generic torque table. The socket can take more than the seat: over-tightening distorts the pocket and moves the cutting edge.

What matters during installation of the TORX PLUS 15IP Tool Screw | M4×9 (0.7 Pitch)?

Tighten it to the torque the tool maker publishes. 15IP socket for larger inserts, torqued to the value published for the holder.

Specifications

Thread Size	M4 × 9mm
Drive Type	Torx Plus 15IP
Standard	GB/T 3098.1, ISO 16047
Drive	star recess
Installation	torqued to the tool maker's value
Typical substrate	indexable carbide inserts
Key inspections	head cone, recess, thread gauging, hardness

Manufacturing and inspection

Head cone angle and recess are checked on a profile projector, threads gauged 6g on every part.We recommend a pilot assembly at the actual torque and mating part before locking the process parameters for volume.