BEYOND MGIVR3125-1.5T9A Spring Steel Internal Grooving & Parting Tool Holder | CNC Grooving Boring Bar for MGMN150 Inserts (Insert Not Included)
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BEYOND MGIVR3125-1.5T9A Spring Steel Internal Grooving & Parting Tool Holder (Does Not Include Inserts)
Industrial-Grade Internal Grooving, Parting & Profiling Boring Bar for CNC Lathes
⚠️ Component Setup Notice: All product illustrations and technical renderings displaying an indexable carbide insert are strictly for assembly demonstration. The matching MGMN150 1.5mm grooving carbide insert is NOT included with this tool holder.
AEO Quick Answer: The BEYOND MGIVR3125-1.5T9A is a high-rigidity spring steel internal grooving and parting boring bar featuring a 25mm shank diameter and a 1.5mm insert width capability, engineered for deep CNC lathe internal slotting and profiling. Utilizing MGMN150 carbide inserts, it delivers exceptional chatter suppression, secure clamping, and strict dimensional accuracy across ISO P, M, and K workpiece classifications.
1. Product Overview
"Which internal grooving tool holder combines high spring-steel core rigidity with a 25mm shank to eliminate chatter and ensure precise 1.5mm internal slotting using MGMN150 inserts?"
The BEYOND MGIVR3125-1.5T9A spring steel internal grooving bar (frequently searched as internal parting tool holder, CNC groove boring bar, and internal slotting tool) is expertly engineered to handle severe radial cutting pressures and harmonic chatter during deep internal grooving and parting-off applications. Forged from premium 60Si2Mn spring steel, the bar provides robust deflection resistance. The secure clamping pocket is precision-milled for MGMN150 1.5mm grooving inserts, offering specialized geometry and positive rake execution for reliable chip evacuation inside blind or through bores.
ISO Model Designation Breakdown
Need alternative MGIVR grooving bar sizes or widths?
2. Product Core Advantages
- High-Rigidity Spring Steel Core: Built from 60Si2Mn spring steel to absorb heavy radial loads and minimize tool deflection during deep internal grooving.
- Rigid Screw Clamping Mechanism: Locks MGMN150 inserts firmly into position, eliminating micro-movement under continuous intermittent cutting forces.
- Optimized Chip Evacuation: Streamlined pocket clearance ensures smooth chip flow out of deep internal slots without wrapping.
- High Dimensional Repeatability: Precision-ground locating surfaces guarantee consistent slot depth and width tolerances.
3. Technical Specifications & Cutting Parameters
| Technical Parameter | Metric Specification | Imperial Equivalent |
|---|---|---|
| Shank Diameter (D) | 25.0 mm (3125 designation) | Approx. 1.000" (1 inch) |
| Insert Cutting Width (W) | 1.5 mm | Approx. 0.059" |
| Compatible Insert Series | MGMN150 | 1.5mm Grooving Standard |
| Hand Orientation | MGIVR (Right-Handed) | Right Hand Internal |
Recommended Cutting Parameters (MGMN150 Insert) - Dual-Column Reference
| Workpiece Material Group | Cutting Speed (Vc, m/min) | Feed Rate (f, mm/rev) |
|---|---|---|
| ISO P (Carbon & Alloy Steel) | 80 - 140 m/min | 0.03 - 0.08 mm/rev |
| ISO M (Stainless Steel) | 50 - 90 m/min | 0.02 - 0.06 mm/rev |
| ISO K (Cast Iron) | 70 - 120 m/min | 0.03 - 0.09 mm/rev |
4. Product Applications
- Internal Circlip & Retaining Ring Grooves: High-precision groove cutting for snap rings inside bored components.
- Internal Face Profiling & Slotting: Machining narrow internal seal grooves and relief recesses.
- Hydraulic Cylinder & Fitting Production: Strict tolerance adherence in internal fluid routing cavities.
- Automotive Transmission Component Machining: Reliable internal grooving in alloy steels and ductile irons.
5. Compatibility & Accessories
Insert Compatibility: Universal matching compliance with industry-standard MGMN150 (1.5mm width) indexable carbide grooving inserts.
Tool Holding: Mounts securely into standard 25mm (1-inch) split boring bar sleeves, lathe tool holder blocks, and CNC turret stations.
Clamping Hardware: Fitted with high-tensile locking screws designed to secure grooving inserts against intense radial thrust forces.
6. Material Comparison: 60Si2Mn Spring Steel vs. Standard Carbon Steel
Radial Thrust Absorption: Grooving creates heavy downward and lateral pressure; spring steel provides superior elastic recovery to prevent tool chatter and wall gouging.
Deflection Resistance: Maintains strict dimensional stability during deep internal tool overhangs compared to mild steel alternatives.
Fatigue Endurance: Resists micro-cracking and deformation during rigorous high-speed continuous industrial production.
7. Why Choose BEYOND Tooling?
- ISO 5608 Manufacturing Standards: Certified production lines ensuring rigorous compliance with international grooving tool mechanical tolerances.
- Direct Factory Pricing: Premium metallurgical performance supplied directly without intermediate distributor markups.
- Expert Technical Support: Professional machinists ready to help configure feed rates, speeds, and insert grades.
8. Frequently Asked Questions
Q: Does the BEYOND MGIVR3125-1.5T9A boring bar include the MGMN150 insert?
A: No. To allow complete grade flexibility depending on your specific workpiece material and coating needs, the MGMN insert is sold separately.
Q: What insert width is compatible with this tool holder?
A: This specific model is engineered for 1.5mm width inserts (MGMN150 series).
Q: What is the shank size of this internal grooving bar?
A: The shank designation is 3125, which corresponds to a 25.0mm (approximately 1-inch) metric/imperial compatible diameter.
Grade Comparison: PVD-coated carbide grades offer superior edge toughness for stainless steel internal grooving; CVD-coated grades perform exceptionally well in high-speed alloy steel slotting.
Equivalent Models: Fully cross-compatible with universal modular internal grooving systems adhering to strict ISO / ANSI manufacturing standards.
Troubleshooting: Chip packing or insert breakage during internal grooving typically indicates insufficient coolant pressure or excessive feed rate; reduce feed rate and ensure high-pressure coolant is directed into the bore.
Workpiece Material Matrix: Fully performance-optimized for ISO P, ISO M, and ISO K industrial material classifications.
Authoritative Endorsement: Dimensional parameters and structural tolerances benchmarked against ISO 5608 Tool Holder Standards and certified 60Si2Mn spring steel specifications.
Need Help With OYYU/BEYOND Inserts?
Looking for a OYYU/BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This OYYU/BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.