# Carbide Quick Change - Top Rake Boring Standard Right Hand

**Manufacturer:** Micro 100  
**MPN:** `QBT4-230500`

The Micro 100 QBT4-230500 Boring Tool is designed for finishing operations. It features top rake geometry for freer cutting and a polished face to reduce galling. The tool has a 1/4" minimum bore diameter and 1/2" maximum bore depth. It has a 5/16" shank diameter and measures 2" overall length. The tool's design also allows for coolant fed operation.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro 100 |
| Manufacturer name | Micro 100 |
| Manufacturer | Micro 100, Micro 100 Tool Corporation |
| CategoryId | 6031 |
| CategoryIdL1 | 2 |
| CategoryIdL2 | 2 |
| CategoryIdL3 | 6049 |
| CategoryIdL4 | 6031 |
| CategoryL1 | Tools & Machining |
| CategoryL2 | Cutting Tools |
| CategoryL3 | Indexable Tools |
| CategoryL4 | Indexable Boring Bars |
| DimensionUnit | inch |
| Extra Product Name | Carbide Quick Change - Top Rake Boring Standard Right Hand |
| UPC | None |
| WeightUnit | lbs |
| diameter | 0.5 |
| extendedLead | 1 |
| height | 0.5 |
| height_Attrib | Max. Bore Dia. |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.0 |
| length_Attrib | Overall Length |
| moq | 1 |
| MPN | QBT4-230500 |
| multiple | 1 |
| qtyInStock | -2 |
| qtyInStockOverride | -2 |
| qtySource | qtyInStockOverride |
| SKU | G205307857 |
| tierMinQty1 | 1 |
| tierPrice1 | 50.00 |
| url | https://www.zoro.com/micro-100-carbide-quick-change-top-rake-boring-standard-right-hand-qbt4-230500/i/G205307857/ |
| width | 0.5 |
| width_Attrib | Max. Bore Dia. |
| Shank Dia | 0.3125" (5/16) |
| Overall Length | 2.00" (2) |
| Neck Dia (In ) | 0.1900" |
| Max Bore Dia | 0.500" (1/2) |
| Min Bore | 0.2500" (1/4) |
| Left/Right Hand | right hand |
| Finish | UN |
| Offset | 0.0738" |
| Projection | 0.0400" |
| ASIN | B09JWSW361 |
| AdultProduct | False |
| Amount | 48.45, 52.40 |
| Asin | B09JWSW361 |
| Autographed | False |
| Brand | Micro 100 |
| Bullet_point | Coolant fed enabled shank design, Corner radius profile, Optimized for finishing operations, Polished face for reducing galling, Top rake geometry provides freer cutting |
| ClassificationId | 256257011 |
| Currency | USD |
| CurrencyCode | USD |
| DisplayName | Boring Bars |
| Height | 0.31, 17, 200 |
| IsBrandQuery | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | Micro 100 QBT4-230500 Boring Tool - Chipbreaker - Quick Change, 1/4" Min Bore Dia, 1/2" Max Bore Depth, 040" Proj, 0738" Offset, 004" Corner Rad, 5/16" Shank Dia, 2" OAL, Uncoated |
| Item_name | Micro 100 QBT4-230500 Boring Tool - Chipbreaker - Quick Change, 1/4" Min Bore Dia, 1/2" Max Bore Depth, 040" Proj, 0738" Offset, 004" Corner Rad, 5/16" Shank Dia, 2" OAL, Uncoated |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G205307857 | 50.0 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/218000000/218360000/part_--QBT4230500---Micro100--6d1a5bc2b3.json`  
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MCP server: https://www.dataalchemy.com/mcp