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YG1-SEM84600305 – .3(R.15) x 4 x .3 x 5 x 40 – 4G Mill 2 Flute 30 Degree Helix Rib Ball End Mill

Original price was: $139.27.Current price is: $104.45.

4G Mill

UPC: N/A SKU: YG1-SEM84600305 Categories: 4G Mill, High Performance End Mill, Milling, YG-1

EDP No.	SEM84600305
Description	4G MILL 2 FLUTE 30 DEGREE HELIX RIB BALL END MILL
Size	.3(R.15) x 4 x .3 x 5 x 40
Available Qty.	Call for availability

Specifications

Series	SEM846
Number of Flutes	2
Diameter (inch)	0.0118
Diameter (mm)	0.3
Shank Dia. (inch)	0.1575
Shank Dia. (mm)	4
Length of Cut (inch)	0.0118
Length of Cut (mm)	0.3
LBS (inch)	0.0197
LBS (mm)	0.5
Overall Length (inch)	1.5748
Overall Length (mm)	40
Ball Nose Radius (inch)	0.0059
Ball Nose Radius (mm)	0.15
Neck Diameter (Inch)	0.27
Shank Style	Plain
Helix Angle	30°
Coating	Y-Coating
Material	Carbide
Cut Type	Center Cut
Corner Type	Ball Nose
Type	Ball Nose with Long Neck
Application	P
Cutting Direction	Right
System of Measurement	MM

Due to new coating and new tool geometry, outstanding cutting ability and wear resistance. Excellent preformance when cutting prehardended steels,carbon steels, up to HRc55 which are ised for molds and dies. Due to unique ball nose geometry and cutting edges, cutting force decreased and wear resistance increased.

⚠ WARNING: This product can expose you to chemicals including cobalt, which is known to the State of California to cause cancer. Click here for more information.

Brand

YG1

Need This Tool Customized?

Every machining application is different. If this tool is close to what you need but not an exact fit, General Cutting Tools can help modify it for your specific job, machine, material, or production requirement.

We work with CNC shops, industrial manufacturers, tool rooms, and production facilities to provide tool modifications that improve fit, function, performance, and efficiency. Whether you need a small adjustment or a more specialized cutting tool solution, our team can review your requirements and recommend the best option.

Custom tool modifications can help reduce setup time, improve accuracy, extend tool life, solve clearance issues, and support more consistent production results.

Common Tool Customization Options

Diameter and OD Modifications

We can modify tool diameters to better match your application requirements, including cutting diameter changes, OD modifications, pilot diameter adjustments, step diameters, and shank diameter modifications.

Bore Modifications for Saw Blades

Custom saw blade bore modifications are available for hole diameter changes, pinholes, mounting holes, and keyway cutouts to help match your machine setup and cutting requirements.

Length Adjustments

Tools can be modified for specific reach, clearance, or setup needs. This may include overall length changes, flute length adjustments, reduced neck sections, extended reach designs, or shortened tools for improved rigidity.

Shank Modifications

Shank modifications can help ensure the tool fits properly in your holder, spindle, or machine setup. Common options include shank diameter changes, flats, Weldon flats, reduced shanks, and custom holding requirements.

Radius, Chamfer, and Corner Changes

We can customize corner radius, chamfer angles, edge breaks, and other profile details to meet part print requirements or improve cutting performance.

Step Tool Modifications

For applications that require multiple diameters or operations in a single tool, we can create or modify step tools to help reduce tool changes and improve production efficiency.

Flute and Cutting Edge Adjustments

Depending on the tool and application, flute length, cutting edge geometry, end cutting features, relief angles, and cutting edge shape may be modified to improve chip evacuation, cutting action, and tool performance.

Regrinding and Resharpening

Many cutting tools can be reground or resharpened to restore performance, extend tool life, and reduce replacement costs.

Custom Profiles and Special Forms

For unique part features, we can help provide special forms, custom profiles, custom radii, counterbores, countersinks, keyseat cutters, form tools, and other application-specific tooling solutions.

Material-Specific Tool Adjustments

We can help modify or recommend tooling based on the material being machined, including aluminum, brass, bronze, plastics, stainless steel, hardened steel, cast iron, composites, and other industrial materials.

Have a Drawing, Sample, or Part Print?

Send us your print, sketch, CAD file, photo, tool number, sample, or application details. For the fastest quote, include the material being cut, quantity needed, required dimensions, tolerances, and any machine or holder requirements.

Coating Options

Tool coatings can be selected or added to improve wear resistance, heat resistance, lubricity, and performance in specific materials such as steel, stainless steel, aluminum, cast iron, and high-temperature alloys.

Request a Custom Tool Modification

Need this tool changed for your application? Contact General Cutting Tools today to discuss your custom tooling needs. We can help you find the right solution for your machine, material, and production goals.

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