Technical Data Sheet: 5/8″ x 3″ Mini Indexable End Mill
Product Overview
The 5/8 x 3 Inch Mini Indexable End Mill (SKU: 5820-0625) is a high-precision milling solution engineered for versatility in small-frame CNC and manual operations. Built from hardened, high-grade tool steel, this cutter is designed to withstand the thermal stresses of continuous-use machining while maintaining rigid tolerances.
Equipped with a TPG-222 carbide triangle insert, this tool delivers a cost-effective solution for peripheral milling, shoulder cutting, and light roughing across alloy steels, carbon steels, and cast iron.
Technical Specifications
| Feature | Specification |
| Cutting Diameter | 5/8″ |
| Shank Diameter | 1/2″ |
| Overall Length | 3″ |
| Body Length | 1″ |
| Insert Style | TPG-222 (Carbide Triangle Included) |
| Replacement Screw | # 2100-0105 |
| Replacement Insert | # 6020-0222 |
| Material | Hardened High-Grade Tool Steel |
| Shipping Weight | 0.2 lbs |
Key Features & Industrial Benefits
Optimized Geometry: The 90-degree cutting angle allows for precise shoulder milling and clean finishes in tight pockets.
Indexable Efficiency: Eliminate downtime associated with regrinding. The TPG-222 insert provides three fresh cutting edges per insert, drastically lowering your cost-per-part.
Industrial Durability: The hardened tool steel body resists deflection and vibration, ensuring a superior surface finish even during aggressive feeds.
Compact Footprint: With a 1/2″ shank and 3″ total length, it is the ideal “mini” solution for toolrooms and job shops requiring high performance in restricted workspaces.
Pro-Tips for Maximum Tool Life
Torque Maintenance: Always ensure the locking screw (#2100-0105) is tightened to the manufacturer’s torque spec. A loose insert is the primary cause of premature carbide fracturing and tool body damage.
Material Compatibility: While the TPG-222 is a “general purpose” powerhouse, use an appropriate coating (like TiN or AlTiN) when transitioning from carbon steels to gummy stainless steels to prevent built-up edge (BUE).
Speed & Feed Optimization: For high-grade tool steel bodies, start at a moderate SFM (Surface Feet per Minute) and monitor chip color. Aim for “straw-colored” chips in steel to ensure heat is transferring to the chip, not the tool body.
Preventive Care: Periodically inspect the insert pocket for debris or “peening.” A clean pocket ensures the insert sits flat, preventing runout.
MRO & Replacement Parts
Keep your production line running without interruption. We recommend stocking the following essentials:
Replacement Screws: # 2100-0105 (Precision-fit for SKU 5820-0625)
Carbide Inserts: # 6020-0222 (TPG-222 Series)
