P4A4L2E12 - GY Series Product - Web Catalog | MITSUBISHI MATERIALS CORPORATION

Clamp-on type.
The modular blade allows for high rigidity and accuracy. (Tri-Lock System)
Various insert types.

※Actual products and images (representative examples) may differ. Please check the dimensions column in the table below for details.

Modular Holder: C4-GYHELM00-M25L
Modular Blade: GYM25LD-E12-050
HAND: Left Hand
CW: 2.50
CDX: 12
DCONMS: 40
LF: 77
LH: 55.6
WF: 27
CSP: -

Stock:

:Inventory maintained.

:Non stock, produced to order only.

:Inventory maintained. To be replaced by new products.

:Inventory maintained in Japan.

Tool Material

Ultra Micro Grain Carbide
Ultra micro grain carbide is used as the substrate material

Cubic Boron Nitride
Mitsubishi’s original CBN is used.

Ceramic
Ceramic is used as the substrate material.

High Hardness Powder Metallurgy HSS
High hardness powder metallurgy HSS is used as the substrate material.

Ultra Micro Grain HSS
Cobalt high speed steel is used as the substrate material.

High Speed Steel
High speed steel is used as the substrate material.

Tolerances

Outside Diameter Tolerance
Indicates diameter tolerance of end mill.

R Tolerance Ball
Indicates the radial tolerance of a ball nose end mill.

R Tolerance Radius
Indicates the radial tolerance of an end mill with a corner radius.

Tolerance of Taper Angle
Indicates the tolerance of the taper angle.

Tolerance of Point Angle
Indicates the tolerance of the point angle.

Shank Diameter Tolerance
Indicates the shank diameter tolerance of end mill.

Angle, Coolant hole, Sharp corner edge and Gash land

Helix Angle
Indicates the helix angle of the end mill.

End Cutting Edge with Coolant Hole

Peripheral Cutting Edge with Coolant Hole

Sharp Corner Edge
Indicates the end mill has a sharp corner edge.

Gash Land
Indicates the end mill cutting edge has a gash land.

Coating

SMART MIRACLE Coating
(Al, Cr)N Coaitng optimum for difficult-to-cut materials.

SMART MIRACLE VQT Coating
(Al, Cr)N coating optimum for Ti-alloys.

SMART MIRACLE VQN Coating
(Al, Ti, Si)N coating optimum for Ni-based alloys.

IMPACT MIRACLE REVOLUTION Coating
A coating which adds the excellent high oxidation temperature of (AL, Cr, Si) N-based films to the nano crystal technology of VF.

IMPACT MIRACLE Coating
Single phase nano crystal coating technology for higher film hardness and heat resistance.

MS PLUS Coating
Offers higher versatility for carbon steel, alloy steel and hardened steel.

MS Coating
PVD offers higher versatility.

MIRACLE Coating
The original Miracle (Al, Ti)N coating also suitable for dry cutting of carbon steels and hardened steels.

CRN Coating
Newly developed CrN coating for Copper Electrodes machining.

DLC Coating
Hardness similar to that of CVD diamond coating achieved with high adhesion strength. (Jointly developed with SHINMAYWA INDUSTRIES, LTD.)

CVD Diamond Coated End Mills CFRP
Suitable for CFRP

CVD Diamond Coated End Mills
High performance coating for hard brittle materials excelling in film adhesion to the substrate.

Diamond Coating
Suitable for graphite machining.

VIOLET Coating
The original Miracle (Al, Ti)N coating achieves longer tool life.

View Properties (Symbols)

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