# Boring Bar, Reverse Boring, AlTiN, 0.1438 in, Micro-Quik Tool Holder

**Manufacturer:** Micro 100  
**MPN:** `QRB-3001000X`

The Micro 100 QRB-3001000X Quick Change Reverse Boring Tool features a solid carbide tool with AlTiN coating, allowing for high-performance boring operations. It has a minimum bore diameter of 0.300" and a maximum bore depth of 1.000". The tool head length is 0.138" and the projection is 0.110". The tool is designed to bore from the inside, toward the face of the part, and is equipped with a polished split face for improved edge retention and chip evacuation.

## 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 | 728709163870 |
| GraingerSku | 15U153 |
| UPC | 728709163870 |
| UnitOfMeasure | EA |
| Weight | 0.09, 0.07999918334902953, 0.07999918334902953017858290, 0.08 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 0.44 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.75 |
| moq | 1 |
| MPN | QRB-3001000X |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | -2 |
| SKU | G7998067 |
| snippet | Boring Bar, Reverse Boring, AlTiN, 0.1438 in, Micro-Quik Tool Holder |
| tierMinQty1 | 1 |
| tierPrice1 | 50.05 |
| url | https://www.zoro.com/micro-100-boring-bar-2-12-in-l-carbide-qrb-3001000x/i/G7998067/ |
| width | 0.44 |
| EAN | 728709163870 |
| Part Number | QRB-3001000X |
| Model | QRB-3001000X |
| Product Group | BISS |
| Overall Length | 2-1/2 in |
| Shank Dia | 5/16 in |
| Bore Dia | .300" |
| Bore Depth | 1.00" |
| Radius | 0.0080 in |
| Min Bore Dia | 0.3000 in |
| Max Bore Depth | 1 in |
| Corner Radius | 0.008" |
| Groove Width | 0.1380" |
| Neck Dia | 0.1900" |
| Item | Boring Bar |
| Cutting Direction | Right Hand |
| Material | C2 Micrograin Carbide, Carbide |
| Shank Material | Carbide |
| Application | For Reverse Boring Tools |
| Angle | .110" |
| Finish | AlTiN Coated |
| Projection | 0.1100 in |
| Offset Point | 0.1438 in |
| Cutting Application | Reverse Boring |
| Series | QRB |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G7998067 | 50.05 | 1 | None | 1 |
| Grainger | 15U153 |  |  | None | 1 |
| Raptor Supplies | AA7CYV | 82.9185435 | 1 | None | 1 |
| sustainablesupply.com | C1444255 | 73.13 | 1 | None | 1 |
| simsupply.com | ZO-G7998067 | 59.34 | 1 | 3 | 1 |

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Structured data: `/python/html6/product/500/73500000/73736000/part_--QRB3001000X---Micro100--aa784b6d2d.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp