Micro 100 TH-204 Boring Grooving Bar Holder

Product Description

The MICRO 100 TH-204 is a boring and grooving bar holder designed to secure boring and grooving bars in CNC and manual turning applications. Part of the TH Series, this holder features a 0.125 inch inside diameter bore and a 0.75 inch outside diameter body, with an overall length of 2.75 inches. The head diameter measures 0.875 inches. Machining professionals and toolroom technicians use this holder to position and support small-diameter boring bars with consistent rigidity and alignment during internal grooving and boring operations.

The TH-204 is suited for precision turning centers and lathes where compact toolholding is required. It is well matched to operations involving small-bore internal grooving, undercutting, and profiling. The TH Series designation indicates compatibility with Micro 100 TH Series boring and grooving bars. This holder does not include coolant-through capability, making it appropriate for applications where external or flood coolant delivery is used instead.

Key Features

• 0.125 inch inside diameter accommodates small-diameter boring and grooving bars
• 0.75 inch outside diameter body fits standard toolholding setups
• 0.875 inch head diameter provides secure bar clamping surface
• 2.75 inch overall length suits compact turning center configurations
• No coolant-through design simplifies setup in flood-coolant environments
• TH Series designation for use with MICRO 100 TH Series boring and grooving bars

Compatibility

Designed for use with MICRO 100 TH Series boring and grooving bars. Verify inside diameter, outside diameter, and overall length against your machine and bar specifications before installation.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine before mounting or adjusting any toolholder. Ensure the bore and mating surfaces are clean and free of chips or burrs before seating the bar. Verify torque requirements per your machine tool manufacturer guidelines when securing clamping screws.