CNC grinding: end mills, drills & special cutters
See how we use a CNC grinder to make carbide end mills, drills and special cutters.
Watch on YouTubeSolid Carbide · 7 Corner Radii · 3 Coating Variants
Corner Radius End MillsBull Nose · R0.2–R2.5mm
Factory-direct solid carbide corner radius (bull nose) end mills. Seven corner radii from R0.2–R2.5mm, three coating variants for steel (HRC55), hardened steel (HRC65), and aluminium. 4-flute geometry for superior surface finish and tool life.
Walter CNC 5-Axis Grinding
Oerlikon Balzers PVD
ZOLLER Radius Inspection
7 Radius Options
3 Coating Variants
MOQ 1 Piece
Standard Size Range
Select Coating & Corner Radius
HRC55R0.5mm
TiSiN · 4 Flute · HRC55 · R0.5mm
Protected corners for semi-finish and finish milling in steel up to HRC55
ISO PISO MISO K
Click any row to view the full SKU detail page with cutting parameters and quote request.
| CUTTER DIA (D1) h7 | CORNER RADIUS | FLUTE LENGTH (L2) | SHANK DIA (D2) h6 | OVERALL LENGTH (L1) | REACH | Est. price | |
|---|---|---|---|---|---|---|---|
| mm | mm | mm | mm | mm | |||
| 2 | R0.5 | 6 | 4 | 50 | Standard | $4.95 | Details |
| 2.5 | R0.5 | 7 | 4 | 50 | Standard | $5.24 | Details |
| 3 | R0.5 | 8 | 3 | 50 | Standard | $4.12 | Details |
| 3 | R0.5 | 9 | 6 | 75 | Standard | $13.36 | Details |
| 3 | R0.5 | 11 | 3 | 75 | Standard | $5.31 | Details |
| 3 | R0.5 | 13 | 3 | 100 | Standard | $6.50 | Details |
| 4 | R0.5 | 11 | 4 | 50 | Standard | $6.11 | Details |
| 4 | R0.5 | 15 | 4 | 75 | Standard | $8.00 | Details |
| 4 | R0.5 | 20 | 4 | 100 | Standard | $9.90 | Details |
| 5 | R0.5 | 13 | 5 | 50 | Standard | $8.41 | Details |
| 5 | R0.5 | 20 | 5 | 75 | Standard | $11.16 | Details |
| 5 | R0.5 | 25 | 5 | 100 | Standard | $13.91 | Details |
| 6 | R0.5 | 15 | 6 | 50 | Standard | $11.02 | Details |
| 6 | R0.5 | 25 | 6 | 75 | Standard | $14.78 | Details |
| 6 | R0.5 | 30 | 6 | 100 | Standard | $18.55 | Details |
| 6 | R0.5 | 35 | 6 | 150 | Standard | $26.72 | Details |
| 8 | R0.5 | 20 | 8 | 60 | Standard | $19.67 | Details |
| 8 | R0.5 | 25 | 8 | 75 | Standard | $23.43 | Details |
| 8 | R0.5 | 35 | 8 | 100 | Standard | $30.69 | Details |
| 8 | R0.5 | 50 | 8 | 150 | Standard | $46.04 | Details |
| 10 | R0.5 | 25 | 10 | 75 | Standard | $35.28 | Details |
| 10 | R0.5 | 40 | 10 | 100 | Standard | $47.05 | Details |
| 10 | R0.5 | 55 | 10 | 150 | Standard | $70.57 | Details |
| 12 | R0.5 | 30 | 12 | 75 | Standard | $50.16 | Details |
| 12 | R0.5 | 45 | 12 | 100 | Standard | $66.88 | Details |
| 12 | R0.5 | 60 | 12 | 150 | Standard | $100.32 | Details |
All dimensions in mm. Custom corner radii (0.1mm increment), non-standard OAL, and special helix angles available on request.
Manufacturing Standard
Radius Accuracy You Can Verify
Walter CNC 5-Axis Grinding
Corner radius ground to ±0.005mm. Equal arc profile on all 4 flutes ensures uniform load distribution during shoulder milling.
Oerlikon Balzers PVD
TiSiN and nACo coatings applied uniformly on the curved corner geometry — uniform hardness from flank to corner arc.
ZOLLER Radius Inspection
Corner radius measured on ZOLLER Inspector per flute. Certified radius tolerance ±0.005mm on every tool.
7 Radius Options
R0.2 · R0.3 · R0.5 · R1 · R1.5 · R2 · R2.5mm. Every standard pocket fillet specification covered in one range.
3 Coating Variants
TiSiN 4F (HRC55 steel) · nACo 4F (HRC65 hardened steel) · Uncoated 4F (aluminium & non-ferrous).
MOQ 1 Piece
No minimum order. Standard sizes ship 1–5 days. Custom radius, OAL, and helix in 5–15 days.
Need a Custom Radius or Long-Neck Configuration?
Custom corner radii in 0.1mm increments (R0.1–R3mm), extended neck relief, AlCrN or DLC coatings, and non-standard OAL. Prototypes in 5–10 days.
Send Your RequirementsFROM OUR WORKSHOP
Watch us grind and inspect our tools
Two videos filmed in our workshop: CNC tool grinding and dimensional inspection.
Measuring carbide end mills at 0.001 mm
Watch our ZOLLER inspection process for precision carbide end mills.
Watch on YouTube