PCHPRL Square-Shank Toolholder

June 01, 2011

June 2011 — ISCAR's new perpendicular toolholder makes it easier to fit PENTACUT 24 grooving and parting tools into overcrowded turrets in high-volume turning operations. It holds the same popular PENTACUT five-edged grooving and parting tool, but from a different angle.

The PCHPRL square-shank toolholder clamps the PENTACUT insert perpendicular to its axis, so the shank can line up with the spindle's centerline. This creates more tool presentation options and can eliminate interference issues in some setups. Popular and proven for years, the star-shaped PENTACUT parting insert provides five straight indexable cutting edges with several types of chipformers.

The combination of a very secure clamping system and strong insert design enables grooving, parting, recessing and chamfering. Users report straighter sidewalls and flatter groove bottoms. Due to the star-shaped design, the insert survives despite failure on one edge. The other four edges remain intact and useable, leading to much lower tooling labor and inventory costs.

Three toolholder sizes are available in the perpendicular arrangement: 16, 20 and 24mm cross sections. The new tools are suitable for regular turret machines, perpendicular orientation and gang/turret type CNC lathe machines.

Related Glossary Terms

  • chamfering

    chamfering

    Machining a bevel on a workpiece or tool; improves a tool’s entrance into the cut.

  • computer numerical control ( CNC)

    computer numerical control ( CNC)

    Microprocessor-based controller dedicated to a machine tool that permits the creation or modification of parts. Programmed numerical control activates the machine’s servos and spindle drives and controls the various machining operations. See DNC, direct numerical control; NC, numerical control.

  • grooving

    grooving

    Machining grooves and shallow channels. Example: grooving ball-bearing raceways. Typically performed by tools that are capable of light cuts at high feed rates. Imparts high-quality finish.

  • lathe

    lathe

    Turning machine capable of sawing, milling, grinding, gear-cutting, drilling, reaming, boring, threading, facing, chamfering, grooving, knurling, spinning, parting, necking, taper-cutting, and cam- and eccentric-cutting, as well as step- and straight-turning. Comes in a variety of forms, ranging from manual to semiautomatic to fully automatic, with major types being engine lathes, turning and contouring lathes, turret lathes and numerical-control lathes. The engine lathe consists of a headstock and spindle, tailstock, bed, carriage (complete with apron) and cross slides. Features include gear- (speed) and feed-selector levers, toolpost, compound rest, lead screw and reversing lead screw, threading dial and rapid-traverse lever. Special lathe types include through-the-spindle, camshaft and crankshaft, brake drum and rotor, spinning and gun-barrel machines. Toolroom and bench lathes are used for precision work; the former for tool-and-die work and similar tasks, the latter for small workpieces (instruments, watches), normally without a power feed. Models are typically designated according to their “swing,” or the largest-diameter workpiece that can be rotated; bed length, or the distance between centers; and horsepower generated. See turning machine.

  • parting

    parting

    When used in lathe or screw-machine operations, this process separates a completed part from chuck-held or collet-fed stock by means of a very narrow, flat-end cutting, or parting, tool.

  • recessing

    recessing

    A turning operation in which a groove is produced on the periphery or inside a hole of a workpiece. The grooving tool moves at right angles to the axis of rotation.

  • shank

    shank

    Main body of a tool; the portion of a drill or similar end-held tool that fits into a collet, chuck or similar mounting device.

  • toolholder

    toolholder

    Secures a cutting tool during a machining operation. Basic types include block, cartridge, chuck, collet, fixed, modular, quick-change and rotating.

  • turning

    turning

    Workpiece is held in a chuck, mounted on a face plate or secured between centers and rotated while a cutting tool, normally a single-point tool, is fed into it along its periphery or across its end or face. Takes the form of straight turning (cutting along the periphery of the workpiece); taper turning (creating a taper); step turning (turning different-size diameters on the same work); chamfering (beveling an edge or shoulder); facing (cutting on an end); turning threads (usually external but can be internal); roughing (high-volume metal removal); and finishing (final light cuts). Performed on lathes, turning centers, chucking machines, automatic screw machines and similar machines.

Additional Products from Iscar USA

The DCN drills feature cylindrical shanks, which enable clamping of the drill in hydraulic toolholders (most recommended) or in spring collets. All drill bodies feature helical coolant holes. Prior to using the 12xD drill, it is recommended to drill a pre-hole by using a DCN 1.5xD drill or a…

The double-sided CXMG inserts operate similarly to CCMT positive inserts and can therefore replace standard CCMT inserts. In some applications, they can also replace standard negative CNMG inserts.
Double-sided with a positive flank. Low cutting forces. Designed with a chipformer for general…

These inserts have 4 types of cutting geometries for machining different materials under diverse cutting conditions: T - Steel, ferritic and martensitic stainless steel, cast iron and hardened steel. HP - Austenitic stainless steel and high temperature alloys. RM-T - Interrupted cut for machining…

High positive cutter pocket inclination. Rigid clamping due to dovetail pocket design secured by clamping screws. Coarse and fine pitch cutter configurations. Coolant holes directed to every insert on the cutters. Precise double-sided square insert. Eight cutting edges – each edge comprises a…

Deep drills with a 3 cutting edged insert (other manufacturers only offer inserts with 1 or 2 cutting edges). Highly accurate peripherally ground insert, provides high hole diameter accuracy of IT10.
The chip splitter produces narrow chips for efficient chip evacuation, enabling high feed…

Two coolant through tools with top and bottom outlets for output pressure of up to 340 bars.
Significantly improves insert tool life. Quick, change fast and easy adapter indexing. User-friendly with a single clamping screw. No set-up time after blade or pocket indexing. Can be used next to…

The CHAM-IQ-DRILL design body is produced from special steel for high durability and a special stopper prevents the drilling head from being extracted upwards from the pocket. Long stoppers provide high resistance to cutting forces, enabling applications under very high cutting conditions. 

The Pentacut HP Jet line from Iscar Metals Inc. combines the cost-effective Pentacut—which can be used in multifunction applications, including grooving, parting, recessing and chamfering—with innovative high-pressure coolant technology.

Iscar Metals Inc.’s Heli Tang T490 milling cutter for roughing accepts inserts with serrated, chip-splitting grooves. These grooves can improve performance when the machine power is limited or when evacuating chips from narrow slots or deep cavities, according to the company.

The increased popularity of Swiss-style machine tools and the need for fast tool indexing with high repeatability and precision has inspired Iscar Metals to develop small-diameter cutting tools with precision indexing. The new PiccoAce system allows easy quick and easy clamping with modularity…