Seco 00057662 Indexable Boring Bar 0.35 in Right Hand

Product Description

The SECO 00057662 is an indexable boring bar designed for internal boring and turning operations on CNC lathes and manual turning centers. Built from heavy metal for vibration damping in tight bore applications, this toolholder uses a screw-clamping method to secure TD.. 1.2 series triangular inserts at a negative rake angle. The STLD toolholder style features a -5 lead angle and a minimum bore diameter of 0.35 inches, making it well suited for small-bore finishing and semi-finishing passes. A licensed machinist or toolroom technician is the typical end user for this type of precision cutting tool.

This boring bar is used in precision machining environments where small internal diameters demand a rigid, vibration-resistant toolholder. It is applicable to both production and job-shop turning operations involving ferrous and non-ferrous workpiece materials. The 6-inch overall length provides sufficient reach for moderate-depth bores while maintaining rigidity. Cutting applications include internal boring and turning. Coolant-through capability is not included in this holder, so external coolant delivery or dry cutting must be planned accordingly.

Key Features

• Heavy metal construction for passive vibration damping in small-bore applications
• Screw-clamp insert retention for positive, repeatable insert seating
• Compatible with TD.. 1.2 triangular inserts with a 5/32-inch inscribed circle
• Right-hand cut orientation with a -5 lead angle and negative rake
• Minimum bore diameter of 0.35 inches suits tight internal features
• 6-inch overall length with a 0.194-inch center-to-cutting-edge dimension

Compatibility

Accepts TD.. 1.2 series triangular inserts with a 5/32-inch inscribed circle and an insert thickness of 0.047 inches, secured with insert screw CS120. Compatible insert size code is 1.21.5.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and the machine is placed in an e-stop or locked-out state before changing inserts or mounting the boring bar. Torque the insert screw to the tool manufacturer specification found in the current SECO tooling catalog — do not estimate. Verify minimum bore diameter clearance and overhang ratio before beginning a cut to avoid tool deflection or chatter.