SPMG/SPGT/SPMT Carbide Inserts for Indexable U-Drills
SPMG, SPGT and SPMT carbide inserts provide replaceable cutting-edge options for compatible indexable U-drills. Different substrates, coatings and edge preparations can cover steel, stainless steel, cast iron and non-ferrous drilling, helping distributors build a practical replacement-insert range for multiple drill systems.
Consistent Quality
Consistent geometry across repeat orders.
Đơn hàng linh hoạt
Small batches and mixed sizes available.
OEM Support
Custom marking, labels and packaging.
Tiêu chuẩn & Theo yêu cầu
Standard sizes and custom configurations.
Product Overview
The SPMG Series Carbide U-Drill Inserts, including models SPMG050204, SPMG060204, SPMG07T308, SPMG090408, SPMG110408, and SPMG140512, are engineered for high-efficiency CNC drilling and turning operations. Compatible with SPGT and SPMT insert types, this series provides broad tooling flexibility to meet diverse drilling requirements in industrial machining environments.
Product Description
Manufactured from premium ultra-fine grain tungsten carbide, the SPMG / SPGT / SPMT U-drill inserts deliver exceptional cutting stability, long tool life, and high accuracy across a wide range of materials. Their optimized cutting-edge geometry reduces cutting resistance, improves chip evacuation, and ensures smooth, consistent hole quality—even under high-speed CNC conditions.
| Parameter | Description |
|---|---|
| Model | SPMG05 / 06 / 07 / 09 / 11 / 14 U Drill Insert |
| Material | Carbide |
| Workpiece | Aluminum / Copper / Steel / Hardened Steel / Stainless Steel / Cast Iron |
| Processing | Finishing, Semi-finishing and Rough |
| Coating | CVD / PVD Coating |
| Color | Gray |
| MOQ Quantity | 10 Pieces |
| Package | 10 pcs / box |
Key Features
-
Sharp cutting edges designed for efficient U-drill machining
-
Ultra-fine grain tungsten carbide substrate for high wear resistance
-
Stable chip-breaker design ensures smooth chip evacuation
-
Compatible with SPMG, SPGT, and SPMT U-drill holders
-
Performs reliably at high cutting speeds in CNC machines
Advantages
-
Enhanced hole accuracy and smoother surface finish
-
Reduced cutting resistance lowers heat generation and tool wear
-
Extended tool life for fewer insert replacements
-
Increased machining efficiency ideal for mass production
-
Stable performance under demanding operating conditions
Applications
-
CNC U-drill hole machining
-
Automotive and motorcycle parts manufacturing
-
Aerospace precision components
-
General industrial and mechanical processing
-
High-speed and automated CNC machining centers

U-Drill Insert Specifications
This page groups SPMG, SPGT and SPMT carbide insert families for compatible indexable drills. Its existing model list specifies six SPMG codes; corresponding SPGT and SPMT item codes, dimension drawings and drill-body matches must be confirmed separately. The insert family name does not establish interchangeability or finished drill diameter.
| Parameter | Details to confirm |
|---|---|
| Insert families | SPMG / SPGT / SPMT; select the exact family specified for each drill-body pocket. |
| Listed SPMG sizes | SPMG05 / 06 / 07 / 09 / 11 / 14; full codes shown below. |
| Tool material | Carbide; substrate grade, coating and chipbreaker depend on the ordered item. |
| Workpiece | Grade-dependent options for steel (ISO P), stainless steel (M), cast iron (K) and non-ferrous alloys (N). Confirm each application; hardened steel is not established for this range. |
| Drill-body fit | Match pocket geometry, seat, screw, inner/outer position and the maker's approved insert list. |
| Supply | Original listing states MOQ 10 pieces and 10 pieces per box; confirm pack quantity, mixed models and availability by code. |
Listed SPMG Models
| Model in original page | Family | Required matching check |
|---|---|---|
| SPMG050204 | SPMG05 | Complete drill-body pocket, grade and chipbreaker. |
| SPMG060204 | SPMG06 | Complete drill-body pocket, grade and chipbreaker. |
| SPMG07T308 | SPMG07 | Complete drill-body pocket, grade and chipbreaker. |
| SPMG090408 | SPMG09 | Complete drill-body pocket, grade and chipbreaker. |
| SPMG110408 | SPMG11 | Complete drill-body pocket, grade and chipbreaker. |
| SPMG140512 | SPMG14 | Complete drill-body pocket, grade and chipbreaker. |
These codes are transcribed from the supplied detail page. It does not contain a verified HY dimension chart or drill-diameter cross-reference. Dimensions published by other manufacturers should not be presented as HY specifications.
How to Select the Insert
1. Identify the drill: record the manufacturer, complete U-drill body designation, drilling diameter and depth ratio.
2. Match the pocket: check the specified SPMG, SPGT or SPMT insert, center/peripheral position, fixing method and any right/left orientation.
3. Match the cut: select the verified grade, coating and chipbreaker for the exact workpiece and coolant conditions.
4. Approve the setup: trial the assembly and check chip evacuation, hole diameter, finish and insert wear.
Cutting Data & References
Set speed and feed per revolution using the complete drill body, center/peripheral insert combination, carbide grade, workpiece grade, diameter, drill depth and coolant delivery. The original product page does not establish a universal speed/feed table, a hardened-steel capability or CVD/PVD availability for every model.
For a dimension drawing and model-specific cutting recommendation, send the drill body and full insert codes. For an aluminum-oriented subset, see SPGT Inserts for Aluminum Drilling.
◆Carbide Insert Customization & OEM
Specify the insert around the machining operation, workpiece and holder. We can review standard replacements, application-specific geometry and private-label requirements using your insert designation, drawing or sample. Available grades, coatings, dimensions and order quantities are confirmed for each requested series.
Geometry & Chip Control
Review chipbreaker, rake, cutting-edge preparation, nose radius and corner design for the operation and workpiece. Confirm holder compatibility before approving a modified geometry.
Substrate & Coating
Select an available carbide grade and coating for the workpiece material, cutting conditions and desired balance of wear resistance and edge toughness.
Dimensions & OEM
Review insert size, thickness, locating and clamping features, tolerances, laser marking and private-label packaging against the approved specification.
◆Customization Options
Use the fields below when sending an inquiry. The exact options depend on the insert family and are confirmed in the quotation or approved drawing.
| Specification | Details to Confirm |
|---|---|
| Insert Type | Turning, milling, threading, grooving or drilling insert; send the designation or drawing. |
| Size & Fit | Shape, size, thickness, inscribed circle or edge length, hole or clamping form, and holder model. |
| Cutting Geometry | Chipbreaker, nose or corner radius, edge preparation, cutting direction and application-specific profile. |
| Grade & Coating | Workpiece group and grade, carbide substrate, coating system and wet or dry cutting conditions. |
| Tolerance & Inspection | Critical dimensions, profile requirements, inspection method and any required report. |
| OEM Presentation | Insert or box marking, label content, packaging format and quantity per pack. |
◆How to Request a Custom Insert

Send your insert requirements through our contact form or review our OEM and private-label service.
◆Carbide Insert Quality Control

Insert quality depends on the approved grade, geometry, coating and dimensional specification. We review the requirements at order confirmation and align the inspection scope with the insert series and any customer drawing. Share critical dimensions or documentation needs before production so they can be included in the agreed inspection plan.
01 · Incoming Material
Confirm the specified carbide grade or material documentation against the order requirements.
02 · In-Process Checks
Review dimensions and cutting-edge features during production against the approved specification.
03 · Final Inspection
Check the agreed dimensions, appearance, edge condition, coating identification and marking as applicable.
04 · Packing Review
Verify the item code, quantity, labels and protective packing against the approved order.
◆Inspection & Documentation
Inspection points and acceptance criteria should be agreed for the ordered series. For custom inserts, the approved drawing takes priority over a generic catalogue description.
| Check Area | What to Confirm |
|---|---|
| Dimensions & Fit | Insert size, thickness, corner radius, clamping features and any drawing tolerances. |
| Cutting Geometry | Chipbreaker, edge preparation, usable corners and profile where applicable. |
| Grade & Coating | Approved grade and coating designation; any requested verification method. |
| Appearance & Packing | Visible edge damage, marking, item code, count and packing format. |
| Requested Records | Inspection report, material or coating documentation, sample approval or batch identification when agreed. |
◆Order & Delivery


Share a line-by-line list of insert codes and quantities for a mixed-size quotation. Stock status, minimum quantity, sample requirements and production lead time are confirmed for each grade, coating and configuration.
Send your item list and quality requirements through our contact form for specification, availability and delivery confirmation.
Product FAQs
Are SPMG, SPGT and SPMT interchangeable?
No automatic substitution should be assumed. The complete designation, dimensional tolerance, chipbreaker, locating features and drill-pocket specification must match. Check the drill manufacturer's approved insert list before changing families.
Which exact models are listed on this page?
The supplied detail lists SPMG050204, SPMG060204, SPMG07T308, SPMG090408, SPMG110408 and SPMG140512. SPGT and SPMT are included as product families, but this source does not list their complete item codes.
Does SPMG050204 specify the U-drill hole diameter?
No. The insert code identifies an insert configuration, while the complete drill-body designation establishes its nominal drilling diameter and compatible insert pockets.
Do the inner and outer pockets use the same insert?
That depends on the drill design. Confirm center and peripheral insert codes, grades, orientation and screws from the specific U-drill body; some systems prescribe different combinations for the two cutting positions.
Can these inserts drill steel, stainless steel, cast iron and aluminum?
The range may include material-specific options, but a single insert grade is not automatically suitable for every listed material. Confirm the workpiece grade, carbide grade, edge geometry and coating for the exact insert code. Hardened-steel suitability requires separate validation.
How should I choose cutting speed and feed?
Use the drill-body maker's starting data for its diameter, depth ratio and insert combination, then adjust for the ordered grade, workpiece, machine rigidity and coolant. Verify chip evacuation, hole size and wear in a trial cut.
Ordering & OEM FAQs
What information is needed for a replacement quote?
Send the drill manufacturer and full body code, current insert designation and label photo, inner/outer position, workpiece material, hole diameter/depth and required quantity.
Can I mix SPMG, SPGT and SPMT items in one inquiry?
Yes. List each complete model, grade, chipbreaker and quantity separately. Mixed-model supply and stock status are confirmed for each line item.
What are the MOQ and pack quantity?
The original page states a 10-piece minimum and 10 pieces per box. Confirm those terms for the selected grade and insert code in the quotation.
Can I request samples or private-label packaging?
Include the complete insert and drill-body codes, trial material, quantity and requested label artwork. Sample, marking and packaging options are confirmed against the approved configuration.
Guides & Technical References
Use the Carbide Insert Types Guide for model designations. For aluminum-focused SPGT options, review SPGT Inserts for Aluminum Drilling.
For a model-specific drawing or quotation, send the complete drill-body and insert codes.
Need Sizes, Pricing or Custom Options?
Send us the required tool type, sizes, quantities, workpiece material and any OEM or custom requirements. We will confirm suitable specifications, availability, lead time and quotation details.
Drawings, size lists and reference photos are welcome.


















