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Solid Carbide Ball End Mills - Ball End Mill, Carbide, 1/4''''
Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.
$42.34
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SKU: 317140250
Overview
This carbide ball end mill is built for machining cavities and round-bottom features, with a four-flute, center-cut design that supports smooth cutting and plunge work without pre-drilling. It is intended for use in right-hand turning equipment and features a right-hand cut with a right-hand helix. The single-ended design and premium high feed rate carbide construction are specified for hardened steels. Available size options include 1/4", 5/16", and 3/8" diameters with corresponding cut lengths listed in the product data.
Why Hunters Choose the Brownells
Four-flute, Center-cut
Design supports smooth cuts and
Carbide Construction
Is specified for cavities and
Right-hand Cut
Right-hand helix suit right-hand turning
Single-ended Design
Keeps the tool straightforward for
Available Multiple
Diameters and cut lengths to
Key Features
- Four-flute, center-cut design for smooth cuts and plunge cutting without pre-drilling.
- Carbide construction for cavities and round-bottom work.
- Right-hand cut with right-hand helix for use in right-hand turning equipment.
- Single-ended ball end mill from Brownells.
- Available in 1/4, 5/16, and 3/8 inch diameters with listed cut lengths.
Best Used For
- Machinists needing a carbide ball end mill for cavities and round-bottom features
- Users working on hardened steels with right-hand turning equipment
- Operators who want plunge cutting capability without pre-drilling
- Projects requiring smooth cuts from a four-flute, center-cut design
- Shop work where single-ended, high feed rate carbide tooling is specified
Specifications
| Additional Sizes | 5/16 in dia. x 0.812 in long cut; 3/8 in dia. x 0.875 in long cut |
|---|---|
| Application | Carbide for cavities, round bottoms |
| Center Cut | Yes |
| Cut Diameter | 1/4 in |
| Cut Direction | Right-hand cut |
| Cut Length | 0.750 in |
| Feed Rate | High feed rate |
| Flute Count | Four-flute |
| Helix Direction | Right-hand helix |
| Material | Carbide |
| Overall Length | 2.5 in to 3 in |
| Shank Diameter | Same as cut diameter |
| Single Ended | Yes |
| Suitable For | Hardened steels |
| Type | Ball End Mill |
| Use | Right-hand turning equipment |
Pros
- Four-flute, center-cut design supports smooth cuts and plunge cutting without pre-drilling.
- Carbide construction is specified for cavities and round-bottom work.
- Right-hand cut and right-hand helix suit right-hand turning equipment.
- Single-ended design keeps the tool straightforward for dedicated use.
- Available in multiple diameters and cut lengths to match the job.
- Specified for high feed rate use in hardened steels.
Considerations & Trade-offs
- Designed for right-hand turning equipment only, so it is not a universal fit for every setup.
- The center-cut, plunge-capable design is useful for cavity work, but it is specialized rather than a general-purpose end mill.
- Available in multiple diameters and overall lengths, so the exact cutting reach depends on the size selected.
- Intended for hardened steels, which makes it more application-specific than a broader-use cutter.
Suggested Comparisons
- Ball end mills
- Center-cut end mills
- Carbide end mills
- Single-ended milling cutters
Suggested Accessories
- Hardened steel cutting fluid
- Tool holder
- Precision collet
- Deburring tool
Frequently Asked Questions
What is this ball end mill designed to do?
It is described as a carbide ball end mill for cavities and round bottoms. The four-flute, center-cut design is intended to produce smooth cuts and allow plunge cutting without pre-drilling.
Can this cutter be used for plunge cutting?
Yes. The long description states that the center-cut design allows plunge cutting to eliminate pre-drilling.
What kind of machine setup does it require?
It is a right-hand cut, right-hand helix tool and the description says to use it in right-hand turning equipment.
What sizes are listed for this product family?
The specs list a 1/4 inch diameter with .750 inch cut length, 5/16 inch diameter with .812 inch cut length, and 3/8 inch diameter with .875 inch cut length. Overall lengths are listed from 2 1/2 inches to 3 inches.
What material is it made from?
The product is described as carbide, with the long description calling it premium, high feed rate carbide for hardened steels. No additional material details are provided.