PO Box 80430
Fort Wayne, IN 46818 US


A Message from THINBIT®


THINBIT® offers DESIGN-A-GROOVE®. DESIGN-A-GROOVE® tooling is modified according to a customer’s specific application requirements.


FORM-A-GROOVE® tooling improves production by generating complex profiles in a single plunge.


THINBIT®, manufactured by Kaiser Tool Company, is pleased to present the MILL A GROOVE™ line.

ACME Threading

ACME THREADING inserts are designed to cut thread sizes 4, 5, 6, 8, 10, 12,14 and 16 threads per inch.


Thinbit® presents Laser Images, its full service laser engraving service.


THINBIT®, manufactured by Kaiser Tool Company, is pleased to announce the expansion of the GROOVE ’N TURN® line with Right Hand, Counter-Clockwise Face Grooving Inserts.

As Seen In Modern Machine Shop

Thinbit will display its Mill A Groove line of toolholders and inserts at IMTS 2018.

Tooling Line Enables Trepanning on a Mill
IMTS 2018: Thinbit’s Mill A Groove line of toolholders and inserts consolidate operations and provide quality finish for sealing surfaces. 

groundbreaking at Kaiser Tool company

Kaiser Tool Co. Breaks Ground on Facility Expansion
Kaiser Tool Co. celebrated its 8,000-square-foot expansion with a formal groundbreaking ceremony.

Thinbit cubic boron nitride and polycrystalline diamond insert

Tool Inserts Improve Finish, Production Rate for High-Temp Alloys
Thinbit by Kaiser Tool Co. offers inserts tipped with cubic boron nitride and polycrystalline diamond.

Thinbit Groove N Turn

Expanded Dovetail Grooving Insert Line
The Thinbit line of Groove ‘N Turn dovetail grooving inserts, by Kaiser Tool Co. has been expanded to offer more sizes.

Thinbit Groove ‘N Turn

Expanded Insert Line Cuts Interior Threads
Kaiser Tool has expanded its Thinbit Groove ‘N Turn line with the addition of Acme threading inserts designed to cut threads ranging from 4 to 16 threads per inch on conventional, Swiss-type and CNC lathes.

Support Blade-Style Tooling Cuts Internal Face Grooves
Thinbit has expanded its Deepgroove line of support blade-style tooling.

ThinBit DeepGroove tools

Blade-Style Tooling for Internal Grooving
ThinBit, manufactured by Kaiser Tool Co., is expanding its line of DeepGroove support blade-style tooling.

Thinbit off-the-shelf-solution

The Right Tools for Micro Grooves
Mack Tool and Engineering used modified inserts to create micro-grooves, but they were prone to breaking. After switching to Thinbit Groove ‘N Turn tools from Kaiser Tool, the company experienced increased tool life.

In the Groove for 50 Years
It’s an American success story. In 1964, William and Hazel Kaiser founded a company to produce and market Thinbit, an innovative line of grooving tools. At first, the business operated out of the couple’s attic and garage. Fifty years later, the Kaiser Tool Company’s products continue to help shops such as Mack Tool and Engineering with successful solutions for demanding grooving applications.

Thinbit Celebrates 50-Year Anniversary
The Kaiser Tool Company began with a single line of small grooving tools in 1964.

Kaiser Tool Thinbit Form-A-Groove tooling

Grooving Tools Generate Complex Profiles
Kaiser Tool Co.'s Thinbit Form-A-Groove tooling can generate complex profiles in a single plunge.

Custom Form Tools for Complex Profiles
The company’s Form-A-Groove tooling can generate complex profiles in a single plunge.

Toolholders for a 30-60-Degree Angle
Groove ‘N Turn toolholders are available in 3/4" and 1" square and are used for making undercuts and thread reliefs at a 30-degree/60-degree angle.

Inserts for Static O-Ring Grooves
Thinbit, manufactured by Kaiser Tool Company, offers an addition to the Groove ‘N Turn line for machining static O-ring grooves.

Dovetail Grooving Inserts
 Manufactured by Kaiser Tool Company, the Groove ‘N Turn line includes dovetail grooving inserts that machine O-ring dovetail grooves with 66-degree undercut angles.


Dovetail Grooving Inserts
Thinbit, manufactured by Kaiser Tool Company, has expanded its Groove ‘N Turn line to include dovetail grooving inserts. Dovetail grooving inserts are used to machine O-ring dovetail grooves with 66-degree undercut angles.


Round Internal Toolholder Selection Expands
Thinbit, manufactured by Kaiser Tool Company, has expanded its selection of internal Groove ‘N Turn toolholders. Available in ½", 5/8", ¾" and 1" diameters, the toolholders have a 1.


Expanded Selection Of Tooling Adapters
Thinbit, manufactured by Kaiser Tool Company, has expanded its selection of adapters for the Mini-Bore, Microbit and MiniGroove ‘N Turn tooling lines. The new adapters are available with 3/4" and 1" ODs and 1/8", 3/16", 1/4", 5/16", 3/8" and 1/2" IDs. .

Addition to Toolholder Line
Groove n’ Turn toolholders offer a new holder available in 1/2", 5/8", 3/4" and 1" diameters. It has a 1. 250" minimum bore and holds inserts with cutting depths to 0.

10 Considerations When Using Grooving Tools
The dynamics of chip formation and evacuation make grooving in turning operations unique in almost every way. Innovative insert designs and coatings can improve your grooving operation, but to be completely successful, there are some other things you should know.

Product Categories of THINBIT®

Boring Tools for Turning Machines
Chamfering Tools
Cut-Off Tools/Attachments
Facing Tools/Heads
Form Tools
Grooving Tools
Inserts, Indexable (Carbide, etc.) & Tool Inserts
Laser Marking Systems
Milling Cutters
Milling Heads/Attachments
Threading Tools
Threading Tools - Cutting
Tooling Systems, Modular and/or Quick-Change

Trade Names

Laser Images®