Koves manufactures cermet turning and milling inserts in KT20 and KCT25 grades: 501 models across 8 families for the mirror-finish turning of steel (≤HRC45) and stainless steel, where cermet replaces grinding and holds tight tolerance.
Eight cermet families for precision finishing — from turning and grooving to small-diameter boring, bearing inserts, milling and CC-MAX solid tools.
KT20 uncoated for mirror-finish turning; KCT25 with nano AlTiN coating for longer life in precision finishing and light-interrupted cutting.
Sharp edge for mirror-finish turning of steel and stainless steel; replaces grinding in many finishing operations.
HV30 1620 · P05-P25 / M10 / K05-K10 / N05-N10
Nano AlTiN coating extends tool life in precision finishing and light-interrupted cutting of steel and stainless.
HV30 1620 (substrate) · P10-P25 / M10-M20 / K10 / N10
Cermet is pressed, sintered and ground in our own plant in Chang'an, Dongguan — substrate and edge preparation are controlled on one line, not outsourced.
KT20 and KCT25 are Ti(C,N)-based cermets with Co/Ni 12.5-14%, WC 20-23% and TaNbC 6-12%, grain 1.5 µm and hardness HV30 1620 — tuned for steel and stainless finishing.
501 models across 8 families mean the standard turning, grooving, threading, boring and milling styles are already catalogued — no waiting on a special.
Send your workpiece material, hardness and machine; our engineers select the grade and chipbreaker and return starting cutting data.
Grade data, cutting conditions and application notes for choosing cermet inserts for steel, stainless and small precision parts.
A technical guide to cermet cutting tools: KT20 and KCT25 grades, ISO insert codes, chipbreaker selection, recommended cutting conditions, materials and troubleshooting.
How cermet, coated carbide and CBN compare in hardness, toughness, wear resistance, cost and typical applications, with a side-by-side comparison table.
When cermet turning can replace grinding, how the two processes compare on cost, flexibility, precision and surface finish, and where grinding still wins.
Koves Industry Co., Ltd. was founded in 2009 and manufactures cermet cutting tools on German cutting-tool technology, independently developed in our Dongguan plant. Cuttermall.com is our dedicated cermet line, separate from our superhard PCBN and PCD business at kovestool.com.
We hold ISO 9001, ISO 14001 and ISO 45001 certification and supply cermet inserts to machine shops, tool distributors, bearing plants and automotive parts makers worldwide — supported by in-house grade development and application engineering.
Four steps with one engineering contact, whether you need a box of standard inserts or a repeat supply programme.
Workpiece material, hardness, operation, machine and target finish or tolerance. A part drawing speeds things up.
Our engineers choose KT20 or KCT25, the insert style and chipbreaker, and return starting cutting data.
Test the recommended grade in your machine; cutting data is tuned to hit your finish and tolerance targets.
Standard models ship from stock; repeat orders and continuous application support keep cost per part down.
Tell us the material, hardness and machine — our engineers reply with a grade recommendation and starting cutting data, at no obligation.
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