HRC65 Ball Nose End Mill【2 Flutes R0.15-R10】

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Home » Ball Nose End Mill » HRC65 Ball Nose End Mill【2 Flutes R0.15-R10】

Specifically Engineered for High-Hardness Steel up to 65HRC
Manufactured from ultra-fine grain carbide and coated with a high-performance wear-resistant layer, this ball nose end mill excels in machining hardened tool steels. It ensures long tool life, dimensional accuracy, and stable performance during prolonged operation.
2-Flute Design Enhances Chip Evacuation and Reduces Cutting Load
The 2-flute geometry offers ample chip space, especially valuable when machining hard materials and deep cavities. It minimizes tool deflection and cutting force, providing better control in finishing operations and 3D profiling.
Ball Nose Geometry Ideal for Complex 3D Surfaces and Fine Features
With a precision-ground hemispherical tip, the cutter is optimized for 3D contouring, surface finishing, and sculpted features. It is widely used in mold & die making, medical components, and precision part machining where surface integrity is critical.
High Red Hardness Coating for Dry or Minimum Lubrication Machining
The advanced thermal-resistant coating allows the tool to maintain cutting edge sharpness at elevated temperatures, supporting high-speed machining under dry or near-dry conditions. This enhances sustainability and machining efficiency.
Application-Based Cutting Data Included – Reduce Setup Time, Improve Output
Each tool is supplied with detailed and field-tested cutting parameters for hardened steels, including recommended speeds, feeds, and depth of cut. This helps operators quickly achieve optimal performance while avoiding costly trial-and-error.

Highly Recommend for Machining

Specialty

Total 36 Models-Unit(Mm)

Model Number	D Outside Diameter	L1 Length Of Cut	L2 Effective Length	BTa Shank Taper Angle	L Overall Length	T Number Of Flutes	d Shank Diameter	In Stock
SHGR2-003003	R0.15	0.3	–	12°	50	2	4	○
SHGR2-004004	R0.2	0.4	–	12°	50	2	4	○
SHGR2-005005	R0.25	0.5	–	12°	50	2	4	○
SHGR2-006006	R0.3	0.6	–	12°	50	2	4	○
SHGR2-008008	R0.4	0.8	–	12°	50	2	4	○
SHGR2- 010015	R0.5	1	1.5	12°	50	2	4	○
SHGR2- 015025	R0.75	1.35	2.5	12°	50	2	4	○
SHGR2-020040	R1	4	4	12°	50	2	4	○
SHGR2-020020-6	R1	2	4	12°	60	2	6	○
SHGR2-030030-3	R1.5	3	6	–	50	2	3	○
SHGR2-030060-4	R1.5	6	6	12°	50	2	4	○
SHGR2-030030-6	R1.5	3	6	12°	60	2	6	○
SHGR2-040080-4	R2	8	8	–	50	2	4	○
SHGR2-040040-6	R2	4	8	12°	60	2	6	○
SHGR2-050100	R2.5	5	10	12°	60	2	6	○
SHGR2-060120	R3	6	12	–	60	2	6	○
SHGR2-060120-75	R3	6	12	–	75	2	6	○
SHGR2-060120-100	R3	6	12	–	100	2	6	○
SHGR2-080160	R4	8	16	–	60	2	8	○
SHGR2-080160-75	R4	8	16	–	75	2	8	○
SHGR2-080160-100	R4	8	16	–	100	2	8	○
SHGR2-080160-150	R4	8	16	–	150	2	8	○
SHGR2-100200	R5	10	20	–	75	2	10	○
SHGR2-100200-100	R5	10	20	–	100	2	10	○
SHGR2-100200-150	R5	10	20	–	150	2	10	○
SHGR2-120240	R6	12	24	–	75	2	12	○
SHGR2-120240-100	R6	12	24	–	100	2	12	○
SHGR2-120240-150	R6	12	24	–	150	2	12	○
SHGR2-140280-100	R7	14	28	–	100	2	14	○
SHGR2-140280-150	R7	14	28	–	150	2	14	○
SHGR2-160320-100	R8	16	32	–	100	2	16	○
SHGR2-160320-150	R8	16	32	–	150	2	16	○
SHGR2-180360-100	R9	18	36	–	100	2	18	○
SHGR2-180360-150	R9	18	36	–	150	2	18	○
SHGR2-200400-100	R10	20	40	–	100	2	20	○
SHGR2-200400-150	R10	20	40	–	150	2	20	○

SHGLSR4 Milling Parameters

Note:
*The above milling parameters are calculated based on 3xD. Decrease both spindle speed and feed rate proportionally if the overhang length exceeds 3xD;
*Recommend oil coolant for Stainless Steels and Heat Resistance Alloys;
*Decrease both spindle speed and feed rate proportionally when the milling parameters exceed the machine’s maximum spindle speed.

Why Choose the SAMHO 2 Flute Ball Nose End Mill?

2-Flute Design: Superior Chip Evacuation for Deep Cavity and 3D Machining

When machining mold steels such as SKD11, H13, and D2, chip evacuation is critical. The 2 flute ball nose end mill for hardened steel provides a larger flute space, which directly improves cutting stability in deep cavity machining.

Larger chip space improves evacuation in deep pockets
Reduces chip recutting and cutting edge re-impact
Prevents heat buildup at the ball nose tip
Reduces tool burning in deep cavity operations

This structure is especially effective in 3D finishing with small step-over strategies, where continuous chip flow is required for stable surface quality.

Optimized Cutting Edge for High-Hardness Steels (HRC 48–62+)

The SAMHO 2-flute ball nose end mill is engineered for high-hardness mold steels, not general-purpose milling.

Micro-honed cutting edges improve edge strength and reduce chipping
High-toughness carbide substrate enhances impact resistance
Stable performance under interrupted cutting conditions
Reliable cutting in hardened steels above HRC 60

This makes it suitable for mold finishing applications where tool failure risk is high.

Ball Nose Geometry for Stable 3D Surface Finishing

The ball nose design is essential for 3D contour machining, especially in mold cavities and electrode finishing. Combined with a 2-flute structure, it delivers smoother surface tracking.