"ISO" carbide inserts are to suit lathe toolholders from all brands, where "niche" carbide inserts are created by a particular carbide company for special applications or to provide advantages over ISO carbide inserts.

TUNGALOY CORPORATION 11-1 Yoshima-Kogyodanchi, Iwaki, Fukushima, 970-1144 Japan Phone: +81-246-36-8501 Fax: +81-246-36-8542 CONTACT FORM >

CLICK HERE TO BUY CARBIDE INSERTS NOW!Indexable carbide inserts (throw away carbide inserts or tips) come in all shapes and sizes for machining all applications.

Threading and Grooving are also readily available in indexable inserts.  Both internal and external thread cutting is achievable with inserts that are mirror image of each other.

Carbide inserts are made of a sintering process using powdered carbide.  Then baking the insert, various coating methods  are used which cover the carbide substrate with a hard wearing surface only microns thick.  This appears as gold or black depending on the coatings; some have many layers of coatings.  Each coating process is a closely guarded secret held by each carbide brand, which allow advantages for use with certain materials.

Grooving inserts are available to go into thread toolholders and internal thread bars, which complement circlip & ‘O' ring grooves.  Grooving toolholders can accept groove carbide inserts especially ground to these sizes with tight tolerances for internal grooving, external grooves and face grooves.

The increasing demand for complex materials and specific milling solutions is driving Tungaloy’s technological developments to create unique machining solutions, where high economic efficiency and productivity are imperative. Tungaloy’s innovative geometries and grades are designed to reach the highest standards in milling operations to overcome any machining challenge.

Common "roughing" indexable carbide inserts are usually 80' (WNMG or CNMG Inserts) negative rake, double sided carbide inserts.

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"Full form" thread inserts offer exact corner radius and profile features to produce an exact thread every time (eg. 16 ER 1.25 ISO), being a 1.25mm pitch METRIC 60' thread insert.

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Even Diamond, PCD indexable inserts (poly crystal diamond) or man-made CBN indexable inserts (cubic boron nitride) can be used, mainly for high volume and long life when machining and finishing aluminium or cast iron. These are tipped tools, where the diamond is sweated to a carbide insert.CLICK HERE TO BUY CARBIDE INSERTS NOW!

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The lay-down style is the most popular giving 3 cutting edges.  16mm thread inserts cover 0.5 - 3.0mm or 4 - 48TPI in a general purpose insert (eg. 16 ER AG 60' ), referred to as "partial profile" threading inserts, while production demands "full form" threading inserts.

STEEL - has an ISO " P " code & BLUE in colour - P05 (hardest grade) - P50 (toughest grade) STAINLESS STEEL - has an ISO "M" code & is YELLOW - M05 (hardest grade) - M50 (toughest grade)CAST IRON- has an ISO " K " code & is RED - K05 (hardest grade) - K50 (toughest grade)ALUMINIUM- has an ISO " N " code & is GREEN - N05 (hardest grade) - N50 (toughest grade)

The chipbreaker (top edge form) of the indexable carbide insert plays an important role to control the swarf to break off, this prevents birdnesting / tangling of swarf around the lathe toolholder or turret, providing a better finish.  In CNC lathes, breaking swarf is critical so the swarf or chip conveyor continues to remove the swarf.