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Made in South Korea
X-POWER PRO 4 Flute 30°Helix Long End Mill (GM817)
Code: GM817020
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Key Features
- 4 flutes with 30° helix for efficient, stable metal removal
- Long length design for reach while maintaining rigidity and accuracy
- Works in steels, hardened steels to 55 Rockwell, stainless steel and cast iron
Made in South Korea
If you're not 100% happy with your purchase, we'll replace or refund.
| SKU | Mill Diameter (mm) | Overall length (mm) | Shank diameter (mm) | Flutes | Length of cut (mm) | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|
| GM817020 | 2.0 | 40.0 | 4.0 | 4 | 8.0 | 5 days | $57.50 | ||
| GM817030 | 3.0 | 50.0 | 6.0 | 4 | 12.0 | 5 days | $83.20 | ||
| GM817040 | 4.0 | 50.0 | 6.0 | 4 | 15.0 | In stock | $62.50 | ||
| GM817050 | 5.0 | 60.0 | 6.0 | 4 | 20.0 | In stock | $62.50 | ||
| GM817060 | 6.0 | 60.0 | 6.0 | 4 | 20.0 | In stock | $62.50 | ||
| GM817080 | 8.0 | 70.0 | 8.0 | 4 | 25.0 | 5 days | $106.60 | ||
| GM817100 | 10.0 | 90.0 | 10.0 | 4 | 30.0 | In stock | $118.50 | ||
| GM817120 | 12.0 | 90.0 | 12.0 | 4 | 30.0 | 5 days | $216.20 | ||
| GM817140 | 14.0 | 110.0 | 16.0 | 4 | 40.0 | In stock | $231.80 | ||
| GM817160 | 16.0 | 110.0 | 16.0 | 4 | 50.0 | 5 days | $303.20 | ||
| GM817200 | 20.0 | 110.0 | 20.0 | 4 | 55.0 | 5 days | $669.00 |
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- Operation
- Work Material
- Reviews
Product Description
X-POWER PRO 4 Flute 30° Helix Long End Mill GM817 delivers stable, precise milling. Advanced ‘Z Coating’ with an ultrafine micrograin carbide substrate supports long life in wet or dry cutting. It machines steels, hardened steels to 55 Rockwell, stainless steel and cast iron across 2–20 mm diameters. Compared to the original X-Power, expect 20–30% longer life, over 20% faster cutting, and improved finish.
Specifications
| Flutes | 4 |
| Helix Angle | 30° |
| Cutting Edge Shape | SQUARE |
| Size Min | R2.0 |
| Size Max | R20.0 |
| Length |
Long Length |
| Coating | Y-Coating |
- 4 flutes with 30° helix for efficient, stable metal removal
- Long length design for reach while maintaining rigidity and accuracy
- Works in steels, hardened steels to 55 Rockwell, stainless steel and cast iron
- Wet or dry cutting for process flexibility
- 2–20 mm diameter range to match common setups
- 20–30% longer life and over 20% faster cutting versus original X-Power
Product Data
| Workpiece Material | P K H |
| Cutting Shape | Square |
| Hardened Steels(HRc40~45) | Excellent |
| Helix Angle | Square 30 |
| No. Flutes | 4 |
| Operation | Die Sinking, Facing, Profiling, Side Milling, Slotting, Small Part |
| Shank Type | Plain |
| Surface Treatment | YG-1 Y Coating |
| Tool Material | Carbide |
Profiling
Side Milling
Small Part
Slotting
Die Sinking
Facing
Carbon Steels
Great
Good
Great
Excellent
Alloy Steels
Excellent
Good
Great
Excellent
Prehardened Steels
Excellent
Good
Great
Excellent
Cast Iron
Great
Good
Great
Excellent
Hardened Steels (HRc40~45)
Excellent
Good
Great
Excellent
Hardened Steels (HRc45~55)
Great
Good
Great
Excellent
