EDGEV / Edgev Hardmetal Tools metal cutting tooling and toolholders

Industrial metal cutting tools from EDGEV / Edgev Hardmetal Tools deliver high precision across turning, deep boring, grooving, and superhard finishing operations.

External turning tool holders DCLNR 3232 and DCLNR/L series

Heavy external turning toolholders from EDGEV (Edgev Hardmetal Tools) series DCLNR featuring 3232 mm shank cross-sections are engineered for heavy-duty metal turning. The dual clamping system secures negative rhombic CNMG inserts during continuous machining of steel forgings.

Rigid steel square shank 3232 mm effectively dampens vibration during rough turning operations
Dual wedge and lever clamping system ensures dependable seating of negative CNMG inserts
Precision machined pocket accommodates standard CNMG insert sizes 12, 16, and 19 mm
Black oxide surface treatment delivers durable corrosion protection in coolant environments

Internal boring bars and turning toolholders S-DCLNR series

Internal boring bars from EDGEV (Edgev Hardmetal Tools) series S-DCLNR are engineered for precise boring of deep bores in structural steel parts. The rigid alloy shank with through-coolant ports delivers pressurized coolant straight to the cutting edge to evacuate swarf smoothly.

Internal through-coolant port directs cutting fluid directly into the internal boring cavity
Streamlined head geometry provides generous chip clearance during deep internal boring passes
High-rigidity alloy steel shank maintains cutting stability at large overhang ratios
Hardened pocket with carbide shim protects the tool body and maintains repeat positioning

Indexable carbide turning inserts WNMG, CNMG, and TNMG

Tungsten carbide turning inserts from EDGEV (Edgev Hardmetal Tools) cover roughing, finishing, and medium turning across carbon and alloy steels. Multilayer PVD and CVD coatings provide superior thermal resistance and edge retention at elevated metal removal velocities.

Trigon geometry WNMG provides six durable indexable cutting edges for economical turning
Formed chipbreaker grooves ensure reliable swarf control across wide depths of cut
Multilayer TiAlN nano-coating shields the carbide substrate from heat and abrasive friction
Micrograin carbide substrate resists chipping during heavy interrupted cutting runs

Superhard cubic boron nitride CBN and PCBN cutting inserts

Superhard cubic boron nitride inserts from EDGEV (Edgev Hardmetal Tools) excel in high-speed turning of hardened alloy steels up to 65 HRC and chilled alloy irons. Solid CBN inserts CNMN series withstand severe mechanical loads during continuous roll turning operations.

Exceptional thermal and chemical stability at cutting zone temperatures exceeding 1100 °C
Honed micro-chamfer cutting edge yields mirror finishes on hardened gear and bearing blanks
Solid CBN body construction across CNMN 1204 and 1207 configurations for roll turning
Eliminates slow grinding operations by achieving Ra 0.4 um roughness directly on the lathe

Polycrystalline diamond PCD inserts and CRDNN toolholders

Polycrystalline diamond tooling from EDGEV (Edgev Hardmetal Tools) is engineered for high-velocity machining of non-ferrous alloys, high-silicon aluminum, and abrasive composites. Heavy-duty CRDNN holders clamp round RNMN inserts securely during continuous profile copy turning.

Superior thermal conductivity of PCD diamond layer eliminates built-up edge on aluminum
Sharp polished cutting edge maintains micro-inch contour precision on abrasive composites
Full round insert geometry RNMN allows flexible multi-directional profile and chamfer turning
Rugged CRDNN toolholder head ensures repeatable radial indexation of diamond inserts

Grooving and parting inserts MGMN and MGEHR tool blocks

Grooving and parting tool systems from EDGEV (Edgev Hardmetal Tools) include MGMN inserts from 2 to 6 mm width and matching MGEHR and MGIVR toolholders. Precision pocket clamping ensures square groove flanks and unhindered swarf evacuation during parting off solid bars.

Double-ended MGMN grooving inserts span blade widths from 2.0 through 6.0 millimeters
Contoured chipbreaker pocket narrows the swarf ribbon to prevent sidewall jamming in deep grooves
Rigid external MGEHR square shanks and internal MGIVR boring bars for deep radial grooves
Wear-resistant gradient coating extends tool life during parting operations on thick-wall tubing

Kinematics and rigidity of external DCLNR toolholders during heavy turning runs

Heavy external turning toolholders from EDGEV (Edgev Hardmetal Tools) series DCLNR featuring 3232 mm square shanks are designed to transmit high cutting torque during heavy roughing on steel forgings and alloy shafts.

The toolhead uses a dual wedge and lever clamp that forces the rhombic CNMG insert against the solid carbide shim while pulling its back edges tight against the hardened pocket walls.

This dual-action restraint prevents radial insert deflection under fluctuating shock loads and interrupted cutting runs.

The shank is machined from heat-treated alloy tool steel with a protective black oxide finish, protecting the body against permanent deformation under extreme metal removal pressures.

Dynamic stability of S-DCLNR internal boring bars across deep internal bores

Internal boring in deep hole cavities with EDGEV (Edgev Hardmetal Tools) series S-DCLNR boring bars demands exceptional bending stiffness to prevent chatter and dimensional taper.

For tool overhang ratios beyond four diameters, the bars feature enlarged under-pocket cross-sections and central through-coolant pathways.

High-pressure cutting fluid ejected through the toolhead nozzle flushes broken swarf continuously out of blind holes, protecting internal cylindrical walls from scratching while keeping cutting temperatures balanced.

The heavy alloy shank dampens micro-vibrations, enabling dependable rough and finish internal turning without tool retraction marks.

Nanostructured coating architectures and wear performance in WNMG inserts

Indexable trigon WNMG and rhombic CNMG inserts from EDGEV (Edgev Hardmetal Tools) are sintered from ultrafine tungsten carbide with tantalum and niobium carbide additions. A functional gradient substrate pairs a tough inner core with high boundary hardness along the cutting perimeter.

Multilayer PVD and CVD coatings alternate titanium carbonitride and aluminum oxide layers, creating a resilient thermal barrier.

This nano-laminated structure shields the carbide substrate from crater wear during high-speed turning of structural steels, reduces friction coefficients, and extends edge longevity across consecutive cutting corners.

Engineering principles of Solid CBN hard turning replacing slow abrasive grinding

Turning hardened alloy steels from 45 to 65 HRC with EDGEV (Edgev Hardmetal Tools) solid cubic boron nitride inserts series CNMN implements high-efficiency hard part turning.

The monolithic binderless CBN crystal structure maintains its microhardness at cutting interface temperatures exceeding 1100 °C. Negative T-land edge preparation induces high compressive shear without plastic workpiece deflection.

This enables CNC lathes to produce mirror-like surface finishes on hardened gears, bearing races, and chilled iron rolls directly in the lathe chuck, eliminating prolonged secondary grinding operations and reducing part processing times.

Precision PCD diamond tooling in CRDNN holders for non-ferrous and composite parts

Superhard polycrystalline diamond tooling from EDGEV (Edgev Hardmetal Tools) paired with rigid CRDNN holders is engineered for high-speed machining of high-silicon aluminum, copper, titanium, and carbon-fiber composites.

The sintered PCD layer offers thermal conductivity far superior to standard carbide tooling, rapidly transferring heat into the swarf and preventing built-up edge formation on ductile aluminum alloys.

Symmetrical round RNMN inserts permit continuous multi-axis contour turning of intricate 3D profiles while maintaining micro-inch surface tolerances across extended production runs.

Chip control optimization across deep radial grooves with MGMN grooving inserts

Grooving and parting tool systems from EDGEV (Edgev Hardmetal Tools) pairing MGMN inserts from 2 to 6 mm width with MGEHR toolholders are built for precision radial grooving, face grooving, and parting operations.

The concave chipbreaker geometry forces the expanding swarf ribbon to curl and narrow laterally as it leaves the shear zone. This narrowed curl flows out of deep grooves without rubbing against groove sidewalls, avoiding tool jamming and edge chipping.

The spring-loaded pocket design maintains repeat insert positioning after indexing without requiring CNC tool offsets.

EDGEV / Edgev Hardmetal Tools and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of EDGEV / Edgev Hardmetal Tools and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.