# Boring Bar, 2-1/2 in L, Carbide

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

The Micro 100 QRB-3001000 Quick Change Reverse Boring Tool is a solid carbide tool designed to bore from the inside of a part toward its face. It features a polished split face for improved edge retention and chip evacuation, and a split geometry that enhances rigidity. The tool has a 0.300" minimum bore diameter, a 1.000" maximum bore depth, and a 2.5" shank diameter. It is designed for use with coolant.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro 100 |
| Manufacturer name | Micro 100 |
| Manufacturer | Micro 100, Micro 100 Tool Corporation |
| CategoryId | 6031 |
| DimensionUnit | inch |
| GraingerSku | 15U152 |
| Extra Product Name | Boring Bar, 2-1/2 in L, Carbide |
| UPC | 728709163863 |
| UnitOfMeasure | EA |
| Weight | 0.09, 0.04999999995807048, 0.04999999995807048102311310 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| extendedLead | 5 |
| height | 0.44 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.75 |
| moq | 1 |
| MPN | QRB-3001000 |
| multiple | 1 |
| qtyInStock | 1 |
| qtyInStockOverride | 1 |
| qtySource | qtyInStockOverride |
| SKU | G7909307 |
| tierMinQty1 | 1 |
| tierPrice1 | 46.75 |
| url | https://www.zoro.com/micro-100-boring-bar-2-12-in-l-carbide-qrb-3001000/i/G7909307/ |
| width | 0.44 |
| Part Number | QRB-3001000 |
| Product Group | Home Improvement |
| Shank Dia | 5/16 in |
| Overall Length | 2-1/2 in |
| Bore Dia | .300" |
| Bore Depth | 1.00" |
| Radius | 0.0080 in |
| Max Bore Depth | 1 in |
| Min Bore Dia | 0.3000 in |
| Neck Dia | 0.1900" |
| Groove Width | 0.1380" |
| Corner Radius | 0.008" |
| Item | Boring Bar |
| Cutting Direction | Right Hand |
| Material | C2 Micrograin Carbide, Solid Carbide |
| Shank Material | Carbide |
| Application | For Reverse Boring Tools |
| Finish | Uncoated |
| Angle | .110" |
| Projection | 0.1100 in |
| Measurement System | Fractional Inch |
| Boring Bar Type | Reverse Boring |
| Finish - Machining | Bright (Uncoated) |
| Overhang | 1.3530 in |
| Compatible with Product Type | Micro-Quik Tool Holder |
| Series | QRB |
| ASIN | B00Q8NM24K |
| AdultProduct | False |
| Amount | 42.55 |
| Asin | B007SUGNVU, B00Q8NM24K |
| Autographed | False |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G7909307 | 46.75 | 1 | 1 | 1 |
| Raptor Supplies | AA7CYU | 70.929378 | 1 | None | 1 |
| AmazonTP | B00Q8NM24K | 74.06 | 1 | None | 1 |
| AmazonUNK | B00Q8NM24K | 74.06 | 1 | None | 1 |
| AmazonSC | B00Q8NM24K | 63.25 | 1 | None | 1 |
| sustainablesupply.com | C1444254 | 61.42 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/255000000/255444000/part_--QRB3001000---Micro100--4486c65657.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp