# Boring Bar, Top Rake Chipbreaker, Bright (Uncoated), 0.0260 in, Micro-Quik Tool Holder

**Manufacturer:** Micro 100  
**MPN:** `QBT-120750`

The Micro 100 QBT-120750 Quick Change Boring Tool features a solid carbide construction with a top rake chip breaker, optimized for finishing operations. It has a 0.120" minimum bore diameter and 0.750" maximum bore depth. The tool also includes a 0.020" projection and 0.004" tool radius, with a 0.1875" shank diameter and 2" overall length. The design incorporates a polished face for reduced galling and a coolant-fed enabled shank.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro 100 |
| Manufacturer name | Micro 100 |
| Manufacturer | Micro 100, Micro 100 Tool Corporation |
| CategoryId | 6031 |
| CategoryIdL1 | 2 |
| CategoryIdL2 | 6049 |
| CategoryIdL3 | 6031 |
| CategoryL1 | Tools & Machining |
| CategoryL2 | Cutting Tools |
| CategoryL3 | Indexable Tools |
| CategoryL4 | Indexable Boring Bars |
| DimensionUnit | inch |
| GTIN | 728709155059 |
| GraingerSku | 15T853 |
| UPC | 728709155059 |
| UnitOfMeasure | EA |
| Weight | 0.02, 0.019999795837257382, 0.01999979583725738309580138 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 0.25 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.25 |
| moq | 1 |
| MPN | QBT-120750 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | -2 |
| SKU | G8139241 |
| snippet | Boring Bar, Top Rake Chipbreaker, Bright (Uncoated), 0.0260 in, Micro-Quik Tool Holder |
| tierMinQty1 | 1 |
| tierPrice1 | 30.79 |
| url | https://www.zoro.com/micro-100-boring-bar-2-in-l-carbide-qbt-120750/i/G8139241/ |
| width | 0.25 |
| EAN | 728709155059 |
| Part Number | QBT-120750 |
| Model | QBT-120750 |
| Product Group | BISS |
| Overall Length | 2 in |
| Shank Dia | 3/16 in |
| Bore Dia | .120" |
| Bore Depth | .750" |
| Radius | 0.0040 in |
| Max Bore Depth | 3/4 in |
| Min Bore Dia | 0.1200 in |
| Neck Dia | 0.1000" |
| Corner Radius | 0.004" |
| Groove Width | 0.0570" |
| Split Length | 0.095" |
| Item | Boring Bar |
| Cutting Direction | Right Hand |
| Material | C2 Micrograin Carbide, Solid Carbide |
| Shank Material | Carbide |
| Application | For Boring Top Rake |
| Finish | Uncoated |
| Angle | .020" |
| Projection | 0.0200 in |
| Side Cutting Edge Angle | 20 Degrees |
| Overhang | 1.0900 in |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G8139241 | 30.79 | 1 | None | 1 |
| Raptor Supplies | AA7CKR | 49.275135 | 1 | None | 1 |
| sustainablesupply.com | C1443394 | 41.56 | 1 | None | 1 |
| simsupply.com | ZO-G8139241 | 42.41 | 1 | 97 | 1 |

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Structured data: `/python/html6/product/500/211000000/211266500/part_--QBT120750---Micro100--132c35febc.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp