Kyocera M4 AlTiN SGM09137 End Mill | Micro EM - Finishing Kyotow
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- Stock: In Stock
- Model: ENDMILL
- Weight: 0.10kg
- Manufactured: In Japan
- Ships: Worldwide
- Item Code: SGM09137
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Product Overview
The Kyocera SGM09137 (KSPT EDP 09137) is a Series M4 micro end mill from KYOCERA SGS Precision Tools — a solid, sub-micron grain carbide, 4-flute, 30° helix, corner-radius cutter with a 0.035" cutting diameter, 0.010" corner radius and long 3xD flute length. The four-flute design raises feed-per-rev and delivers the finest floor and wall finishes in the micro line. Finished with KSPT's proprietary Ti-Namite-A (AlTiN) PVD coating for superior chip flow and wear resistance.
The 3xD long-flute configuration supports axial depths up to 2 x DC at light radial engagement — ideal for finishing deep, thin walls and tall micro features in one pass. With a balanced 0.010" corner radius that blends edge strength with surface-finish quality for general micro work, the SGM09137 produces crisp detail, low burr formation and mirror-quality finishes in tool steels, stainless steels, cast iron, aluminum and copper alloys, titanium and high-temperature alloys — a proven choice for micro molds, medical components, electronics housings, watchmaking and fine engraving work.
ISO Designation Breakdown
As a fractional-inch solid carbide round tool, this product is designated by its KSPT catalog (EDP) code rather than an ISO 1832 insert code. The table below decodes every element of the full product designation.
| Code Element | Value | Meaning |
|---|---|---|
| Brand / Program | Kyocera — KSPT | KYOCERA SGS Precision Tools micro round-tool program |
| Store MPN | SGM09137 | Store catalog number: SGM (SGS Micro) prefix + manufacturer EDP |
| Manufacturer EDP | 09137 | KSPT engineering part number for this exact geometry and coating |
| Series | M4 / M4CR | M = Micro end mill family · 4 = four flutes · CR = corner-radius end configuration |
| Geometry class | Long 3Xd Flute Length | Length of cut = 3 × DC (0.105"); cylindrical shank portion, no reduced neck |
| Cutting diameter class | 0.035" fractional | Inch-series diameter, tolerance +0.000 / –0.001" |
| End configuration | Corner radius 0.010" | Radius tolerance +0.0000 / –0.0005" |
| Coating variant | Ti-Namite-A (AlTiN) PVD | Uncoated variant available as EDP 08997 |
Engineering Dimensions & Geometry
| Parameter | Symbol | Inch | Metric | Tolerance / Note |
|---|---|---|---|---|
| Cutting diameter | DC | 0.035" | 0.889 mm | +0.000 / –0.001" |
| Length of cut (flute) | APMX | 0.105" | 2.667 mm | 3 × DC |
| Shank diameter | DCON | 1/8" (0.125") | 3.175 mm | h6 |
| Overall length | LF | 1-1/2" (1.500") | 38.1 mm | — |
| Corner radius | RE | 0.010" | 0.254 mm | +0.0000 / –0.0005" |
| Number of flutes | Z | 4 | 4 | Positive rake |
| Helix angle | — | 30° | 30° | Right-hand helix, right-hand cut |
| End teeth | — | Center-cutting | Center-cutting | Permits slotting & ramp entry |
Grade Details - Key Grade Characteristics
This tool pairs KSPT's application-specific sub-micron grain carbide substrate with the proprietary Ti-Namite-A (AlTiN) PVD coating — the wear-resistant option in the M3CR family. Key grade characteristics:
| Characteristic | Engineering Benefit |
|---|---|
| Ti-Namite-A (AlTiN) coating | Aluminum-titanium-nitride PVD layer engineered for abrasive wear resistance in steels, cast irons and super alloys |
| Superior chip flow | KSPT's proprietary coating promotes smooth chip evacuation, driving productivity even at low spindle speeds |
| Thermal barrier | AlTiN forms a protective aluminum-oxide surface in the cut, shielding the edge at elevated temperatures |
| Sub-micron carbide substrate | Ultra-fine grain core resists micro-chipping at micro diameters |
| Extended tool life | Coating + micro-tool substrate significantly outlast uncoated edges in ferrous and high-temp materials |
| ISO 9001:2015 manufacture | Every tool produced under KSPT ISO-certified quality procedures for lot-to-lot consistency |
Grade Comparison Matrix
The M4CR geometry is stocked in two material options. This listing is the Ti-Namite-A (AlTiN) coated version (EDP 09137); the uncoated version is orderable as EDP 08997.
| Parameter | This Tool — Ti-Namite-A, AlTiN (EDP 09137) | Alternate — Uncoated (EDP 08997) |
|---|---|---|
| Coating | Ti-Namite-A aluminum-titanium-nitride PVD | None (bright, polished carbide) |
| Substrate | Sub-micron grain carbide (micro-tool grade) | Sub-micron grain carbide (micro-tool grade) |
| Edge condition | Coating-honed for maximum wear resistance | Sharpest possible edge; finest finishes |
| Heat management | AlTiN thermal barrier for hotter, drier cuts in steels | Relies on coolant / air blast; excels at moderate temperatures |
| First-choice materials | Carbon / alloy / tool steels, cast iron, titanium, high-temp alloys | Aluminum, copper, brass, plastics, fine finishing |
| Chip flow | Superior — proprietary coating drives chip evacuation even at low spindle speeds | Very good on polished flutes |
| Choose this option when | Abrasive wear, heat and tool life in ferrous / high-temp materials are the priority | Ultimate edge sharpness in non-ferrous materials is the priority |
Chipbreaker Profile
Solid carbide end mills do not use a molded chipbreaker; instead, chip control on the SGM09137 is engineered directly into the flute and face geometry:
| Geometry Element | Chip-Control Function |
|---|---|
| 4-flute geometry | More teeth per revolution for finer finish and higher table feed; best chip control in light-engagement finishing |
| 30° helical flutes | Shears chips away from the cut and augers them up and out of the pocket, reducing re-cutting |
| Ti-Namite-A coated flutes | Low-friction, wear-resistant surface — chips evacuate smoothly and the coating resists chip abrasion |
| Positive rake face | Produces small, manageable chips at micro feed-per-tooth values and lowers cutting pressure |
| Corner-radius edge prep | Controls chip thickness at the corner, the most highly stressed point of the edge |
Application note: four flutes leave less chip space than three — in full-width slots keep Ap at or below the tabulated limit, evacuate chips with a directed air blast or coolant, and mill deep slots in steps. The catalog feed values in this listing already include chip-thinning adjustment where applicable.
Recommended Applications & Workpiece Materials
| ISO Group | Workpiece Materials | Hardness | Suitability |
|---|---|---|---|
| P — Steels | Carbon steels (1018, 1040), alloy steels (4140, 4340), tool & mold steels (P20, H13, D2) | ≤ 40 HRc | ●●● Excellent |
| M — Stainless Steels | 303, 416 free-machining grades; 304, 316L difficult grades | ≤ 28 HRc | ●●● Excellent |
| K — Cast Irons | Gray, malleable and ductile irons | ≤ 220 Bhn | ●●● Excellent |
| N — Non-Ferrous | Aluminum alloys (6061, 7075), copper, brass, bronze, engineering plastics | ≤ 150 Bhn | ●●● First choice |
| S — Super Alloys & Titanium | Ti6Al4V, Inconel 625/718, Incoloy, Monel, Waspaloy | ≤ 43 HRc | ●●○ Good — use reduced parameters |
Typical components: micro mold cavities and cores, medical and dental parts, electronics and connector housings, aerospace ribs and details, watchmaking and instrument components, microfluidic channels, engraving and fine-detail finishing.
Application Map by Operation
| Operation | Suitability | Process Guidance |
|---|---|---|
| Full slotting | ●●○ Good — light Ap | Ap ≤ 0.35 × DC (0.0123"); 4 flutes need room for chip evacuation |
| Side milling / profiling | ●●● Excellent | Ae ≤ 0.25 × DC, Ap ≤ 2 × DC; climb milling preferred |
| Micro pocketing | ●●● Excellent | Helical ramp entry ≤ 1°, then level passes at profile parameters |
| Contour / 3D finishing | ●●● Excellent | Corner radius 0.010" blends floors and walls; 4-flute finish quality is best in class |
| Deep-wall finishing | ●●● Excellent | Ap up to 2 × DC at Ae ≤ 0.25 × DC |
| Helical ramping | ●●○ Limited | ≤ 1° ramp angle at slotting speed & feed |
| Straight plunging | ✕ Not recommended | Use ramp entry or pre-drilled entry instead |
| Engraving / fine detail | ●●● Excellent | Keen micro edge gives crisp features and minimal burr |
Recommended Cutting Conditions
KSPT baseline parameters for the 0.035" diameter, long 3xD flute length (feeds include the ×1.41 4-flute multiplier for this flute length). rpm = Vc × 3.82 ÷ DC; ipm = baseline feed × multiplier. Fz shown for the nearest chart reference diameter (0.0312").
Reduce speed and feed for harder materials. If recommended rpm exceeds machine capability, use maximum available rpm and recalculate feed.
| Material Group | Vc Profile (sfm) | Vc Slot (sfm) | RPM Profile | RPM Slot | Fz (in/t) | Feed Profile (ipm) | Feed Slot (ipm) |
|---|---|---|---|---|---|---|---|
| Carbon Steels 1018, 1040, 1080, 12L15 · ≤ 275 Bhn (≤ 28 HRc) | 365 (292–438) | 290 (232–348) | 39,837 | 31,651 | 0.00013 | 16.99 | 13.49 |
| Alloy Steels 4140, 4150, 4320, 8630 · ≤ 375 Bhn (≤ 40 HRc) | 210 (168–252) | 165 (132–198) | 22,920 | 18,009 | 0.00012 | 8.69 | 6.82 |
| Tool Steels A2, D2, H13, P20, S7 · ≤ 375 Bhn (≤ 40 HRc) | 175 (140–210) | 140 (112–168) | 19,100 | 15,280 | 0.0001 | 6.03 | 4.82 |
| Stainless Steels (Free-Machining) 303, 416, 420F, 430F · ≤ 275 Bhn (≤ 28 HRc) | 340 (272–408) | 270 (216–324) | 37,109 | 29,469 | 0.00013 | 15.82 | 12.56 |
| Stainless Steels (Difficult) 304, 304L, 316, 316L · ≤ 275 Bhn (≤ 28 HRc) | 235 (188–282) | 185 (148–222) | 25,649 | 20,191 | 0.00012 | 9.73 | 7.66 |
| Cast Irons Gray, Malleable, Ductile · ≤ 220 Bhn (≤ 19 HRc) | 305 (244–366) | 245 (196–294) | 33,289 | 26,740 | 0.00014 | 14.21 | 11.42 |
| Aluminum Alloys 2017, 2024, 6061, 7075 · ≤ 150 Bhn (≤ 7 HRc) | 1000 (800–1200) | 800 (640–960) | 109,143 | 87,314 | 0.0004 | 137.47 | 109.98 |
| Copper Alloys C110, Alum Bronze, Muntz Brass · ≤ 140 Bhn (≤ 3 HRc) | 515 (412–618) | 410 (328–492) | 56,209 | 44,749 | 0.0003 | 53.13 | 42.30 |
| Titanium Alloys Pure Ti, Ti6Al4V · ≤ 350 Bhn (≤ 38 HRc) | 160 (128–192) | 130 (104–156) | 17,463 | 14,189 | 0.00008 | 4.68 | 3.81 |
| High-Temp Alloys Inconel 601/617/625, Incoloy, Monel 400 · ≤ 300 Bhn (≤ 32 HRc) | 60 (48–72) | 45 (36–54) | 6,549 | 4,911 | 0.00008 | 1.57 | 1.17 |
| High-Temp Alloys (Hard) Inconel 718, X-750, Waspaloy, Rene · ≤ 400 Bhn (≤ 43 HRc) | 45 (36–54) | 35 (28–42) | 4,911 | 3,820 | 0.00005 | 0.78 | 0.61 |
| Engagement Limit | Profile Milling | Slot Milling |
|---|---|---|
| Width of cut (Ae) | ≤ 0.25 × DC = 0.0088" | 1.0 × DC (full width) |
| Depth of cut (Ap) | ≤ 2 × DC = 0.0700" | ≤ 0.35 × DC = 0.0123" |
| Finishing allowance | Reduce Ae to ≤ 0.02 × DC = 0.0007" and reduce feed | Reduce feed ~30% for floor finishing |
Operating Guidelines
| Topic | Recommendation |
|---|---|
| Tool runout | Hold total indicated runout (TIR) to ≤ 0.0002" at the tool — runout is the #1 cause of premature micro-tool failure |
| Toolholding | Use precision collet, shrink-fit or hydraulic micro chucks; never side-lock or set-screw holders |
| Gauge length | Clamp maximum shank length; keep stick-out to the minimum that clears the workpiece and fixture |
| Milling strategy | Climb mill whenever possible; program arc-lead entries and avoid sharp direction reversals at full engagement |
| Entry moves | Helical ramp at ≤ 1° using slotting parameters; straight plunging is not recommended with the 0.035" end |
| Coolant / chip clearing | Flood coolant for steels, stainless, titanium and super alloys; directed air blast for aluminum, plastics and deep slots |
| Finishing | Reserve a finishing allowance of ≤ 0.02 × DC (0.0007") radially and reduce feed ~30% for mirror results |
| Chip evacuation | With 4 flutes, clear chips every pass in slots — compressed chips are the main cause of corner breakage |
| Tool life monitoring | Inspect the edge under ≥ 20× magnification; replace at the first sign of micro-chipping or corner wear |
| Break-in | Run the first 5–10 minutes at ~70% of table feed to condition the edge, then ramp to full parameters |
Toolholder Compatibility
The 1/8" (3.175 mm) h6 cylindrical shank fits all standard micro-tool holding systems:
| Holder Type | Specification | Suitability / Notes |
|---|---|---|
| ER collet chuck | ER11 or ER16 with 1/8" (3.175 mm) precision collet | ●●● Excellent — most common choice; verify TIR after assembly |
| Shrink-fit holder | 3.175 mm micro shrink-fit bore | ●●● Excellent — best runout and balance for high rpm |
| Hydraulic micro chuck | 3.175 mm bore, radial clamping | ●●● Excellent — vibration damping for fine finishes |
| High-speed spindle | 24,000–60,000 rpm recommended | Required to reach catalog Vc in non-ferrous materials; else use max rpm and recalculate feed |
| Milling chuck / side lock | Set-screw type holders | ✕ Not recommended — damages shank and induces runout |
| Balance quality | G2.5 or better at operating rpm | Critical above 20,000 rpm with micro tools |
Packaging & Ordering Information
| Item | Details |
|---|---|
| Unit of sale | 1 piece (each) — individually packaged |
| Protective packaging | Rigid micro-tool tube with cushioned end cap; edge fully protected in transit and storage |
| Label data | EDP, series, cutting diameter, corner radius, reach, coating and lot traceability code |
| Minimum order quantity | 1 piece — no pack multiples required |
| Alternative option | Uncoated version of this tool: order EDP 08997 (store MPN SGM08997) |
| Authenticity | Genuine KYOCERA SGS Precision Tools OEM product, backed by the full manufacturer warranty |
| Support | Application-engineering support available for parameter selection and troubleshooting; bulk and blanket orders welcome |
Catalog Meta Data
| Field | Value | Field | Value |
|---|---|---|---|
| Product ID | 20288 | Store MPN | SGM09137 |
| Manufacturer EDP | 09137 | Brand | Kyocera |
| Division | KYOCERA SGS Precision Tools (KSPT) | Series | M4 / M4CR Micro |
| Tool family | Solid carbide micro end mills — fractional inch | End style | Corner radius, center-cutting |
| Flutes / Helix | 4 / 30° RH | Coating | Ti-Namite-A (AlTiN) |
| Substrate | Sub-micron grain carbide | Shank | 1/8" h6 plain cylindrical |
| Quality standard | KSPT ISO 9001:2015 | HTS classification | 8207.70 — interchangeable milling tools |
| Country of origin | United States | Catalog reference | SGS Micro Tool Catalog — Series M4●M4CR |
✓ Genuine Kyocera Product
| Manufacturer | Kyocera Corporation |
|---|---|
| Status | Verified Original Product |
| Quality Assurance | Guaranteed Genuine Kyocera Components |
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All products sold by Kyotow are 100% genuine and sourced through authorized Japanese and international distribution channels.
正確な製品情報
Following the Japanese philosophy of Monozukuri (物の作り), we strive to maintain exceptional technical accuracy throughout our product catalog.
- Confirm dimensions, geometry, coating, and grade using the official Kyocera item code.
- Technical datasheets are available upon request.
- For technical clarification contact sales.kyotow@gmail.com.
返品・キャンセルポリシー
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100% Accuracy Guarantee:
Full refund or replacement will be provided if the verified Kyocera item received differs from the official item code specified in your order confirmation. -
Order Finality:
Due to automated procurement systems connected directly to global factory distribution channels, orders cannot be modified or cancelled once processing has commenced. -
Technical Assistance:
Please verify machine compatibility, insert geometry, coating, and application grade before placing your order.
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Need Technical Assistance?
Contact our industrial tooling specialists for application support, tooling recommendations, datasheets, and compatibility verification.
sales.kyotow@gmail.comDirect Supply Chain Transparency サプライチェーンの透明性
Why are our prices so low? (価格が安い理由): Kyotow sources genuine Kyocera tools directly from domestic Japanese distribution networks, completely bypassing the steep regional markups, localized sales overhead, and heavy middleman margins of Western distributors. We pass 100% of those structural savings directly to your machine shop.
Kyotowは日本の国内流通ネットワークから京セラ正規品を直接仕入れることで、欧米の現地代理店による大幅な上乗せ価格や営業コスト、中間マージンを完全に排除しています。その構造的メリットを、お客様の加工現場へ100%還元いたします。
Domestic Sourced
Procured straight from Japan's local wholesale networks to capture maximum market arbitrage.
100% Genuine
Zero counterfeit risk. All items are brand-new, authentic factory-sealed Japanese stock.
No Regional Markups
We bypass Western corporate sales teams and localized regional overhead costs entirely.
