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2 Flute ball nose end mill
2 Flute Ball Nose End Mill
2 Flute Ball Nose End Mill
2 Flute Ball Nose End Mill
2 Flute ball nose end mill
2 Flute Ball Nose End Mill
2 Flute Ball Nose End Mill
2 Flute Ball Nose End Mill

GP-2 Flute Ball Nose End Mill

•  The short blade design greatly improves the wear resistance of the tool and can achieve higher surface quality of the workpiece.
•  It is mainly used for processing hardened steel materials of HRC45~70, especially for precision mold parts that require long-term processing.

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2 Flute Ball Nose End Mills

Series Code Parameter Dc(h7) fillet LC L1 SD(h5) Teeth number
GP GPB2-01 R0.5*2*50*4 1  R0.5 2  50  4  2 
GP GPB2-01PA R0.5*2*75*6 1  R0.5 2  75  6  2 
GP GPB2-015 R0.75*3*50*4 1.5  R0.75 3  50  4  2 
GP GPB2-015PA R0.75*3*75*6 1.5  R0.75 3  75  6  2 
GP GPB2-02 R1*4*50*4 2  R1 4  50  4  2 
GP GPB2-02A R1*4*75*4 2  R1 4  75  4  2 
GP GPB2-02PA R1*4*75*6 2  R1 4  75  6  2 
GP GPB2-025 R1.25*5*50*4 2.5  R1.25 5  50  4  2 
GP GPB2-03 R1.5*6*50*4 3  R1.5 6  50  4  2 
GP GPB2-03A R1.5*6*75*4 3  R1.5 6  75  4  2 
GP GPB2-03PA R1.5*6*75*6 3  R1.5 6  75  6  2 
GP GPB2-04 R2*8*50*4 4  R2 8  50  4  2 
GP GPB2-04A R2*8*75*4 5  R2 8  75  4  2 
GP GPB2-04B R2*8*100*4 4  R2 8  100  4  2 
GP GPB2-05 R2.5*10*50*6 5  R2.5 10  50  6  2 
GP GPB2-05A R2.5*10*756 5  R2.5 10  75  6  2 
GP GPB2-06 R3*12*50*6 6  R3 12  50  6  2 
GP GPB2-06A R3*12*75*6 6  R3 12  75  6  2 
GP GPB2-06B R3*12*100*6 6  R3 12  100  6  2 
GP GPB2-08 R4*16*60*8 8  R4 16  60  8  2 
GP GPB2-08A R4*16*75*8 8  R4 16  75  8  2 
GP GPB2-08B R4*16*100*8 8  R4 16  100  8  2 
GP GPB2-10 R5*20*75*10 10  R5 20  75  10  2 
GP GPB2-10B R5*20*100*10 10  R5 20  100  10  2 
GP GPB2-10C R5*20*150*10 10  R5 20  150  10  2 
GP GPB2-11 R5.5*22*75*12 11  R5.5 22  75  12  2 
GP GPB2-11B R5.5*22*100*12 11  R5.5 22  100  12  2 
GP GPB2-12 R6*24*75*12 12  R6 24  75  12  2 
GP GPB2-12B R6*24*100*12 12  R6 24  100  12  2 
GP GPB2-12C R6*24*150*12 12  R6 24  150  12  2 
GP GPB2-14 R7*28*100*14 14  R7 28  100  14  2 
GP GPB2-14B R7*28*150*14 14  R7 28  100  14  2 
GP GPB2-16 R8*32*100*16 16  R8 32  100  16  2 
GP GPB2-16B R8*32*150*16 16  R8 32  150  16  2 
GP GPB2-18 R9*36*100*18 18  R9 36  100  18  2 
GP GPB2-18C R9*36*150*18 18  R9 36  150  18  2 
GP GPB2-20 R10*40*100*20 20  R10 40  100  20  2 
GP GPB2-20C R10*40*150*20 20  R10 40  150  20  2 
FAQ
We use nano-grade substrates, which increase bending strength by 20%. As long as the parameters are matched, the lifespan is very stable, effectively reducing downtime.
No. The chip removal groove is mirror-polished and extremely smooth, allowing chips to be discharged smoothly.
Strictly controlled within 0.003mm with this range, ensure precise hole diameter and avoid enlarging the hole.
Yes. We have a specialized series of nano-coatings that are high-temperature resistant, wear-resistant, and specifically designed for difficult-to-process materials.
Standard sizes are readily available and can be shipped on the same day; custom-made items can be delivered in as little as 7-10 days.

MSU have rich stock for standard micro drills, if have stock, we can ship to you within 3 days. please download our 2026 Micro drills catalogue for speficiation of micro drills.

Every single item has batch traceability. If there’s a quality issue, we respond within 24 hours and offer refund or replacement.

“Our micro drill bit diameter tolerance is strictly controlled within ±0.002mm , and the shank diameter tolerance is h6 standard. Regarding runout, each batch undergoes high-magnification optical inspection before leaving the factory to ensure that the runout is controlled within 0.005mm , minimizing the risk of drill breakage and ensuring the consistency of hole diameter.”

“We offer a variety of coatings, including TiAlN (TiAlN) and DLC (Diamond-like Carbon). To address chip removal challenges, our micro-drills feature mirror-polished chip evacuation grooves . This significantly reduces cutting resistance and prevents built-up edge (BUE) formation, making them particularly suitable for deep hole machining.”

“While our unit price may be slightly higher than that of lower-end brands, by increasing tool life by 30% and reducing scrap rate by 0.5% , your ‘overall machining cost per hole’ is actually lower. For customers with high annual usage, we offer tiered pricing and annual rebate agreements.”

Yes, we can produce as per client’s drawing or request, then our engineer will make drawing for confirmation, we will produce samples for testing after client’s confim.  MSU Provide High-precision machining solutions, improved micro-hole machining yield. wholesale micro-drills, reduced tooling costs.

Yes, our MSU426 series is suitable for stainless steel. 

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