TTX32R60005 PR930 (10pcs)
VNGG160402L TN60 (10pcs)
VNBR0520-02 PR930 (10pcs)
VNBR0420-02 PR930 (10pcs)
VNBR0411-02 PR930 (10pcs)
VNBR0311-02 PR930 (10pcs)
VNBR0206-005S PR930 (10pcs)
XTG43R400 TN60 (10pcs)
XTG43R200 TN60 (10pcs)
Kyocera Indexable Grooving Inserts — 105 Genuine SKUs in Stock
Factory-direct supply of 105 genuine Kyocera indexable grooving inserts in stock at CNCHome-Beyond, covering 13 Kyocera series (GDM / GMM / GMG / GBA / VNBR / VNGG / TKN / TTX / XTG and more) and 7 carbide grades (PR1225 / PR930 / PR1215 / PR1115 / PR915 / TN60 / TN90 / KW10). Every insert is original Kyocera Japan stock, ISO 1832 standard compliant, and shipped globally at 30-50% below OEM list price. Kyocera’s grooving series uses the company’s proprietary MEGACOAT CVD coating for steel and an uncoated K-class grade (KW10) for aluminum — a unique combination no other brand offers in a single product line.
- 100% genuine Kyocera Japan — sourced directly from the Japan factory, hologram-sealed boxes, traceable lot numbers
- 30-50% below OEM list price — factory-direct pricing with no middleman markup
- ISO 1832 standard compliant — every insert follows the international designation system
- MEGACOAT CVD coating for steel + KW10 uncoated for aluminum — complete material coverage from a single brand
- Free global shipping — DHL / UPS / FedEx 3-7 day delivery to 50+ countries
- Volume discounts — 2-9 pieces 6% off, 10+ pieces 12% off
What is “Indexable Grooving”?
Indexable grooving is a radial cutting operation on a CNC lathe — the insert feeds inward from the OD toward the centerline of a rotating workpiece. The “indexable” part means the insert has two cutting edges (typical), so you can index (flip) the insert to use the second edge when the first one wears, doubling the tool life per insert vs single-edge designs.
Common applications include:
- O-ring and seal grooves — rectangular or V-shaped recesses that hold rubber O-rings or lip seals in hydraulic cylinders, valve bodies, and bearing housings
- Snap-ring (circlip) grooves — DIN 471/472 standard grooves for internal or external snap rings
- Thread relief undercuts — small grooves at the end of a threaded section to allow the threading die to run out cleanly
- Parting-off (cut-off) — cutting a finished part off the parent bar stock
- Thread whirling — Kyocera’s high-speed thread milling using TKN / TTX / XTG inserts (5-10x faster than thread turning)
- Profile grooving — custom-shaped grooves for O-rings, retaining rings, or decorative features
13 Kyocera Grooving Series in Stock
Kyocera uses a proprietary naming convention (not the standard ISO letter system) for grooving inserts. The 13 series in this collection:
| Series | Full Name | Cutting Edges | Best For |
|---|---|---|---|
| GDM | General-purpose Double-ended Molded | 2 | Universal grooving, O-ring, snap-ring, the shop floor workhorse |
| GMM | General Multi-Material | 2 | Precision grooving 1.0-3.0 mm width, sharp edge for finishing |
| GMG | General Molded Grooving (heavy) | 2 | Deep grooves, heavy-duty cutting, higher MRR than GDM |
| GBA | Grooving Blade Aluminum | 1 | Aluminum and non-ferrous parting-off, sharp edge for BUE prevention |
| GH | General Holder-style | 1-2 | Short workpiece applications where holder rigidity matters |
| VNBR | V-Notch (B-rake) | 1 | V-shaped grooves for V-rings or O-ring face seals |
| VNGG | V-Notch Ground Grooving | 1 | Precision V-grooves, precision-ground for tight tolerance |
| TG | Thread Grooving (partial) | 2 | External thread undercut, partial profile (60° thread only) |
| TGF | Thread Grooving (full profile) | 1 | Full profile thread undercut, complete thread form in one cut |
| TKN | Thread KNurl (Kyocera whirling) | multi-edge | High-speed thread whirling, multi-edge ring for productivity |
| TTX | Thread TX (whirling) | multi-edge | Thread whirling, single-point alternative to TKN |
| TWFGL | Thread Whirling Full GL | multi-edge | Full-profile thread whirling with chip-breaker |
| XTG | X Thread Grooving | multi-edge | High-feed thread whirling on Swiss-type lathes |
7 Kyocera Grades in Stock
All 105 inserts use Kyocera’s proprietary grade system. The MEGACOAT CVD grades cover steel, the cermet grades cover precision finishing, and the uncoated KW10 covers aluminum — a unique combination only Kyocera offers.
| Grade | Type | Workpiece (ISO) | Best Application |
|---|---|---|---|
| PR1225 | CVD (MEGACOAT) | P15-P30 (general steel) | Universal grooving, the workhorse grade for most steel O-ring & snap-ring grooves, 0.5-3.0 mm width |
| PR1215 | CVD (MEGACOAT) | P10-P25 (low-carbon steel) | Precision grooving, 0.5-1.5 mm width, low-carbon steel & mild steel |
| PR1115 | CVD (MEGACOAT) | P05-P15 (precision) | High-precision shallow grooves, mirror-finish steel |
| PR930 | CVD (MEGACOAT tough) | P20-P35 (heavy steel) | Deep grooves, interrupted cuts, parting-off on tough alloy steel |
| PR915 | CVD | P15-P30 (medium steel) | Medium-duty grooving, the economy grade |
| TN60 | Cermet | P05-P15 (precision steel) | Mirror-finish grooving on carbon steel, cermet edge for Ra 0.4 µm finish |
| TN90 | Cermet | P10-P25 (general steel) | Cermet for medium grooving, tougher than TN60 for interrupted cuts |
| KW10 | Uncoated K-class | N (non-ferrous, aluminum) | Aluminum & copper grooving, sharp uncoated edge prevents BUE on sticky materials |
Width and Radius Selection Guide
Grooving inserts are specified by cutting width (W), which must match the groove width. Standard widths:
| Groove Width | Typical Use | Common Width Code |
|---|---|---|
| 0.5 - 0.79 mm | Precision thread relief, very fine seal | 05 - 08 |
| 0.8 - 1.49 mm | Light snap-ring, O-ring on small shafts | 08 - 15 |
| 1.5 - 2.0 mm | Standard snap-ring (DIN 471/472) | 15 - 20 |
| 2.0 - 3.0 mm | O-ring (most common, hydraulic) | 20 - 30 |
| 3.0 - 4.0 mm | Large O-ring, parting-off soft steel | 30 - 40 |
| 4.0 - 6.0 mm | Heavy parting-off, deep grooves | 40 - 60 |
Compatible Tool Holders
All Kyocera grooving inserts in this collection use the company’s proprietary KGBRF / KGDFR / KGMFR holder series with a top-clamp locking design. Cross-compatible with other brands:
| Holder Brand | Holder Series | Insert Fit |
|---|---|---|
| Kyocera (original) | KGBRF / KGDFR / KGMFR | All GDM / GMM / GMG / GBA / VNBR / VNGG / TG / TGF / TKN / TTX / XTG |
| Sandvik | Q5-Cutter series | GDM / GMM (geometry-compatible) |
| Mitsubishi | MGSH / GYSR series | GDM / GMM (geometry-compatible) |
| Iscar | Do-Grip series | GDM / GMM (geometry-compatible) |
| Walter | GX series | GDM / GMM (geometry-compatible) |
Recommended Cutting Parameters
| Grade | Workpiece | Cutting Speed Vc (m/min) | Feed f (mm/rev) | Coolant |
|---|---|---|---|---|
| PR1225 | Carbon steel (1045 / S45C) | 120 - 200 | 0.05 - 0.15 | Flood required |
| PR1215 | Low-carbon steel (1018 / SS400) | 100 - 180 | 0.05 - 0.12 | Flood required |
| PR1115 | Low-carbon steel (precision) | 100 - 150 | 0.03 - 0.10 | Flood required |
| PR930 | Alloy steel (4140 / SCM440) | 80 - 150 | 0.05 - 0.15 | High-pressure |
| PR930 | Stainless steel (304 / 316) - heavy | 60 - 120 | 0.04 - 0.12 | High-pressure required |
| PR915 | Medium steel, economy | 120 - 200 | 0.05 - 0.15 | Flood required |
| TN60 (Cermet) | Carbon steel (precision finishing) | 150 - 250 | 0.03 - 0.08 | Flood required |
| TN90 (Cermet) | Carbon steel (medium) | 120 - 220 | 0.04 - 0.12 | Flood required |
| KW10 | Aluminum 6061-T6 | 300 - 800 | 0.05 - 0.20 | Flood (high-pressure recommended) |
| KW10 | Copper C360 / Brass C260 | 200 - 500 | 0.05 - 0.15 | Flood |
Why Grooving Inserts Need Special Grade Selection
Regular turning inserts (CNMG, DNMG, etc.) cannot be used for grooving for three reasons:
- Geometry mismatch — turning inserts have a triangular or square cross-section designed for axial cutting, while grooving inserts have a rectangular cross-section with cutting edges on both sides
- Width specification — grooving inserts are specified by exact cutting width (W = 2.0 mm, 3.0 mm, etc.), turning inserts are not
- Coolant delivery — grooving holders have internal coolant channels routing high-pressure fluid directly to the cutting edge, while turning holders do not
Kyocera’s grooving series solves all three problems with purpose-built insert geometry, exact width codes (matching standard groove dimensions), and matched high-pressure holders. Do not substitute a turning insert for a grooving insert — the result is immediate insert chipping and likely workpiece scrap.
Frequently Asked Questions
Q: What is the difference between GDM, GMM, and GMG?
These are three different Kyocera grooving series optimized for different applications:
- GDM (General-purpose Double-ended Molded) — the workhorse, 2 cutting edges, 1.5-3.0 mm width, the most common choice for O-ring and snap-ring grooves
- GMM (General Multi-Material) — precision grooving, 1.0-3.0 mm width, sharper edge for finishing and tighter tolerance
- GMG (General Molded Grooving heavy) — heavy-duty grooving, deeper depth of cut, higher MRR than GDM, used for thick-section grooves
Q: Can I use the same insert for O-ring grooves and snap-ring grooves?
Yes, if the widths match. O-ring grooves and snap-ring grooves both use the same grooving insert geometry (rectangular cross-section, narrow width). The difference is in the depth and width of the groove, not the insert itself. For example, a GDM 2.0 mm insert can cut both a 2.0 mm O-ring groove and a 2.0 mm snap-ring groove.
Q: How does Kyocera KW10 compare to coated grades on aluminum?
Coated grades (PR1225, VP15TF, etc.) will chip within 1-2 passes on aluminum because the aluminum material builds up on the cutting edge (built-up edge / BUE), then tears off with the coating, ruining the edge. KW10 is uncoated (sharp K-class tungsten carbide), which prevents BUE entirely. KW10 is the correct choice for any aluminum 6061, 7075, copper C360, brass, or bronze grooving application. Do not use coated grades on aluminum.
Q: What is thread whirling (TKN / TTX / XTG)?
Thread whirling is a high-speed thread milling process using a ring-shaped multi-edge insert that orbits around the workpiece while the workpiece rotates slowly. The result is a complete thread profile formed in 1-2 seconds vs 10-30 seconds for traditional thread turning. TKN, TTX, and XTG are Kyocera’s three whirling series:
- TKN — multi-edge ring, 5-10x productivity vs thread turning
- TTX — single-point whirling alternative, for harder materials
- XTG — high-feed whirling on Swiss-type lathes
Q: How do I choose the right insert width for my groove?
The insert cutting width (W) must match the groove width exactly. Standard groove widths:
- Snap-ring (DIN 471/472) — 0.8, 1.0, 1.2, 1.5, 2.0, 2.5 mm
- O-ring (most common) — 1.0, 1.5, 2.0, 2.5, 3.0 mm
- Thread relief — 0.5, 0.8, 1.0 mm
- Parting-off — 1.5, 2.0, 2.5, 3.0, 4.0 mm (depends on workpiece diameter)
Q: Can I use these inserts on stainless steel?
Yes, with caution. PR1225 and PR930 are the best choices for stainless grooving:
- Reduce cutting speed to 60-120 m/min (vs 120-200 for carbon steel)
- Use high-pressure coolant (100+ bar)
- Use chip-breaker geometry if available (reduces chip entanglement)
- Index (flip) the insert more frequently to maintain sharpness
Q: Do you offer custom Kyocera grooving widths?
Yes. The 105 SKUs in stock cover the most common 1.0-6.0 mm widths. For custom widths (0.5-8.0 mm), custom radii (0.05-1.6 mm), or special V-groove profiles, our engineering team can source from Kyocera Japan factory in 7-14 days. Contact us at chao@cnchome-beyond.com or WhatsApp +86 159 9066 3752 with your requirements.
Shop Related Kyocera Collections
Browse the full Kyocera catalog at CNCHome-Beyond. Kyocera has 21+ sub-collections covering every major insert family:
- Kyocera Brand Page — all Kyocera product lines, MEGACOAT coating technology, engineering support
- Kyocera Back Turning Inserts — ABW / ABS series for axial undercutting (often paired with grooving)
- Kyocera Negative Turning Inserts — CNMG / DNMG / WNMG / TNMG / SNMG 0° double-sided inserts for heavy roughing
- Kyocera Positive Turning Inserts — CCMT / DCMT / TCMT / VBMT 7° single-sided inserts for finishing and aluminum
- Kyocera Threading Inserts — 16ER / 16IR threading inserts in PR1225 grade
- Kyocera Milling Inserts — APKT / AOMT / SEKT / SNKT milling cutters
- Kyocera CN 80° Diamond Negative — CNMG / CNMA 80° square turning inserts (most popular shape)
Other Global Brand Grooving & Turning Inserts
CNCHome-Beyond also stocks equivalent grooving and turning inserts from the world’s top carbide brands. Compare grades, lead times, and pricing:
- KORLOY Brand Page — Korean carbide manufacturer, ISO 9001 certified, 12 grades for steel / stainless / cast iron
- KORLOY Master Catalog — 557 SKUs of CNMG / DNMG / VNMG / WNMG / TNMG / SNMG in grades NC3225 / NC3030 / NC9125 / PC8110
- Tungaloy Brand Page — Japanese carbide specialist, 90+ years in cutting tools
- Tungaloy Master Catalog — 443 SKUs of CNMG / DNMG / CCMT / VBMT in T9000 / AH8000 series
- TaeguTec Brand Page — Korean multinational, ISCAR group sister brand
- TaeguTec Master Catalog — full turning + milling + drilling lineup in TT7000 / TT9080 / TT5515 grades
Shop More from CNCHome-Beyond
- Premium Carbide Inserts (All Global Brands) — 5,880 SKUs across 8 brands (Sandvik / Mitsubishi / Tungaloy / KORLOY / Iscar / Kyocera / OYYU / BEYOND)
Need a Custom Kyocera Grooving Insert? Request a Quote
Our engineering team can source any Kyocera grooving geometry (custom widths 0.5-8.0 mm, custom radii 0.05-1.6 mm, special V-groove profile, full-profile thread whirling inserts, or rare grades like PR1525 / PR1625) within 7-14 days from Kyocera Japan factory direct.