Kennametal 1262017 Indexable Threading Toolholder Rh

Product Description

The KENNAMETAL 1262017 is a right-hand indexable threading toolholder designed for grooving and threading operations on CNC lathes and turning centers. Built from solid carbide, this toolholder accepts CDG-style inserts secured by a screw-clamp holding method, providing repeatable insert positioning and rigid support during interrupted or continuous threading cuts. The shank measures 0.187 inches wide by 0.187 inches tall, with an overall length of 4 inches. The insert inscribed circle is 0.156 inches. The back-of-bar to cutting edge distance is 0.272 inches, and the center to cutting edge is 0.154 inches. This toolholder is well suited for tight-clearance, small-bore threading applications where a compact shank profile is required.

This toolholder is intended for use in precision turning and threading applications on small-diameter or restricted-clearance workpieces. The E03 toolholder style and E03HCSER12 style designation indicate compatibility with small-shank boring bar setups commonly found in Swiss-type, gang-tool, and conventional CNC turning configurations. It is classified as a multi-use tool, supporting both grooving and threading operations without requiring a tool change. Installation is typically performed by machining professionals and CNC setup technicians working in production or job-shop environments.

Key Features

• Solid carbide construction for maximum rigidity and vibration resistance in small-shank applications
• Right-hand cut orientation with E03 toolholder style designation
• Accepts CDG insert geometry secured by screw clamping for consistent repeatability
• Supports both grooving and threading operations from a single holder
• Compact 0.187 x 0.187 inch shank profile for tight-clearance and small-bore setups
• No coolant-through design; suitable for external coolant delivery setups

Compatibility

Designed for use with CDG-style indexable inserts with a 0.156-inch inscribed circle. The E03HCSER12 style designation applies to small-shank boring bar and gang-tool configurations common in CNC turning. Refer to KENNAMETAL tooling catalogs to confirm insert and machine compatibility before ordering.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and all axis motion is disabled before changing or seating the toolholder. Confirm the shank bore in the tool block or turret matches the 0.187 x 0.187 inch shank dimensions, and verify insert seating and screw torque per the insert manufacturer's documentation. Use appropriate insert handling tools to avoid chipping the CDG insert during installation.