# Indexable Boring Bar, Insert Shape Triangle, Overall Length 8 in, E08R STUPR2, 5/16 in, MTS-255 Insert Screw, T-7 Key, Coolant Through, Boring, Right Hand

**Manufacturer:** Ultra-Dex Usa  
**MPN:** `E08R STUPR2-281`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Ultra-Dex Usa |
| Manufacturer name | Ultra-Dex Usa |
| Manufacturer | Ultra-Dex Usa |
| CategoryId | 6031 |
| CategoryIdL1 | 2 |
| CategoryIdL2 | 6049 |
| CategoryIdL3 | 6031 |
| CategoryL1 | Tools & Machining |
| CategoryL2 | Cutting Tools |
| CategoryL3 | Indexable Tools |
| CategoryL4 | Indexable Boring Bars |
| DimensionUnit | inch |
| GTIN | None |
| GraingerSku | 33NC54 |
| UPC | None |
| UnitOfMeasure | EA |
| Weight | 0.7 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 0.5 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 9 |
| moq | 1 |
| MPN | E08R STUPR2-281 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | Drop Ship |
| SKU | G0050200 |
| snippet | Indexable Boring Bar, Insert Shape Triangle, Overall Length 8 in, E08R STUPR2, 5/16 in, MTS-255 Insert Screw, T-7 Key, Coolant Through, Boring, Right Hand |
| tierMinQty1 | 1 |
| tierPrice1 | 300.99 |
| url | https://www.zoro.com/ultra-dex-usa-indexable-boring-bar-e08r-stupr2-8-in-l-carbide-triangle-insert-shape-e08r-stupr2-281/i/G0050200/ |
| width | 2.5 |
| Overall Length | 8 in |
| Shank Dia | 1/2 in |
| Bar Dia | 0.500" |
| Insert Size | 21.51 |
| Min Bore Dia | 0.6000 in |
| Item | Indexable Boring Bar |
| Min Bore | 0.560" |
| Cutting Direction | Right Hand |
| Insert Shape | Triangle |
| Shank Material | Carbide |
| Style | Coolant-Thru |
| ANSI Code | E08R STUPR2 |
| Rake | Positive |
| Insert Thickness | 0.0937" |
| Inscribed Circle | 1/4" |
| For Use With | TPMT 21.51 |
| Mounting Style | Screw Lock |
| Type | Turning |
| Cutting Edge Type | -3 Degrees |
| ANSI Number | E08R STUPR2 |
| Lead Angle | -3 Degrees |
| Left/Right Hand | Right Hand |
| Compatible Hardware | MTS-255 Insert Screw, T-7 Key |
| Number of Inserts | 1 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0050200 | 300.99 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/114000000/114356500/part_--E08RSTUPR2281---UltraDexUsa--4108a4ec6a.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp