# 0.300" Min Bore DIA x 0.750" (3/4) Max Bore Depth 0.1380" Tooth Width 0.110" Projection x 0.3125" (5/16) Shank DIA x 2.50" (2-1/2) Overall Length x 0.008" Corner Radius - Carbide Quick Change - Reverse Boring Right Hand

**Manufacturer:** Micro 100  
**MPN:** `QRB-300750`

The Micro 100 QRB-300750 Quick Change Reverse Boring Tool features a solid carbide construction with a minimum bore diameter of 0.300" and a maximum bore depth of 0.750". Its tool head length is 0.138" and projection is 0.110". The tool radius is 0.008" and shank diameter is 0.3125". Designed to bore from the inside out, this tool has 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 |
| UPC | None |
| WeightUnit | lbs |
| height | 0.75 |
| height_Attrib | Max. Bore Depth |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.5 |
| length_Attrib | Overall Length |
| moq | 1 |
| MPN | QRB-300750 |
| multiple | 1 |
| qtyInStock | -2 |
| qtyInStockOverride | -2 |
| qtySource | qtyInStockOverride |
| SKU | G0981376 |
| tierMinQty1 | 1 |
| tierPrice1 | 40.69 |
| url | https://www.zoro.com/micro-100-quick-change-boring-tools-reverse-boring-0300-min-bore-dia-finish-un-qrb-300750/i/G0981376/ |
| width | 0.138 |
| width_Attrib | Groove Width |
| Part Number | QRB-300750 |
| Model | QRB-300750 |
| Product Group | BISS |
| Overall Length | 2-1/2" |
| Shank Dia | 5/16" |
| Corner Radius | 0.008" |
| Max Bore Depth | 3/4" |
| Min Bore Dia | 0.3000" |
| Neck Dia | 0.1900" |
| Groove Width | 0.1380" |
| Cutting Direction | Right Hand |
| Finish | UN |
| Projection | 0.1100" |
| Package Quantity | 1 |
| ASIN | B00Q8NMFAQ |
| AdultProduct | False |
| Amount | 42.55 |
| Asin | B00Q8NMFAQ |
| Autographed | False |
| Binding | Misc. |
| Brand | Micro 100 |
| Bullet_point | Coolant fed enabled shank design, Designed to bore from the inside, toward the face of the part, Inside corner radius profile, Polished split face for improved edge retention and chip evacuation while |
| Case | 1 |
| Cat | Industrial & Scientific |
| CatId | 16310091 |
| CatTree | 16310091, 16310161, 383598011 |
| ClassificationId | 256257011 |
| Currency | USD |
| CurrencyCode | USD |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G0981376 | 40.69 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/107500000/107624500/part_--QRB300750---Micro100--eef39fd5e5.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp