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55° RH and LH Tool Holders w/Carbide Inserts

These tool holders are available individually in right-hand or left-hand configurations, or as a matched pair. Each holder includes a 55° carbide insert, a hold-down screw, and a Torx® key for installation. Designed with a 3/8″ square shank, they fit standard 3/8″ tool posts, and the insert tip is precisely 0.375″ from the base of the holder—an industry-standard dimension.

The 5° offset angle of the cutting tip provides added versatility for certain operations. For example, when the holder is squared with the crosslide, it allows you to turn an outside diameter (O.D.) up to a shoulder and then finish the shoulder by backing the tool out—while maintaining proper tool clearance.

Constructed from case-hardened steel with a durable black oxide finish, these holders are built for long-lasting performance.

Although carbide insert tools are more costly than high-speed steel (HSS) tools, they offer an advantage: when the cutting edge becomes dull or chipped, you can simply rotate the insert 180° to use the second edge—essentially giving you two tools in one.

While HSS tools remain the primary choice for miniature machining due to their low cost, resharpenability, and adaptability for custom form tools, carbide insert tools are invaluable for specific applications. They maintain a sharp edge when cutting hard or abrasive materials, reduce tool wear, and allow for faster machining—reasons why they’re widely used in professional machine shops.

Note: Tool orientation is named by the direction the chip exits the tool. A right-hand tool has its cutting edge on the left, and the chip peels off to the right.

Updated Note: The previously used straight-groove chip breaker insert shown in some images is no longer available. All current inserts now come with the spider web-style chip breaker as shown here.

 

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The improper use of machine tools and their accessories can result in serious injury. Before using this tool, thoroughly read the instructions and make sure you understand its proper and safe use.

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Always wear safety glasses when operating machine tools.


Download PDF Carbide Tip Tools Instructions

Instructions PDF Download

Insert Holder Material Case Hardened Steel
Body Coating Black Oxide
Insert Material Carbide
Cutting and insert angle for P/N 2256
Cutting and insert angle for P/N 2257
Part No. Description Quantity
22561 55° right-hand insert tool holder body 1
22571 55° left-hand insert tool holder body 1
22580 T7 Torx driver 1
7605 55° carbide insert 1
76232 Torx screw 1