# Carbide Quick Change - Top Rake Boring Standard Right Hand

**Manufacturer:** Micro 100  
**MPN:** `QBT4-120375`

The Micro 100 QBT4-120375 boring tool features a chipbreaker design for optimized finishing operations. Its top rake geometry allows for freer cutting, while a polished face reduces galling. The tool is designed for coolant-fed applications and has a 3/16" shank diameter. It has a minimum bore diameter of 132" and a maximum bore depth of 3/8". The tool's projective is 020", offset is 0263", and corner radius is 004".

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro 100 |
| Manufacturer name | Micro 100 |
| Manufacturer | Micro 100, Micro 100 Tool Corporation |
| CategoryId | 6031 |
| DimensionUnit | inch |
| GraingerSku | QBT4-120375 |
| Extra Product Name | Carbide Quick Change - Top Rake Boring Standard Right Hand |
| UPC | None |
| WeightUnit | lbs |
| diameter | 0.375 |
| extendedLead | 26 |
| extendedQty | -2 |
| height | 0.375 |
| height_Attrib | Max. Bore Dia. |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1.5 |
| length_Attrib | Overall Length |
| moq | 1 |
| MPN | QBT4-120375 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | -2 |
| SKU | G705307661 |
| tierMinQty1 | 1 |
| tierPrice1 | 31.99 |
| url | https://www.zoro.com/micro-100-carbide-quick-change-top-rake-boring-standard-right-hand-qbt4-120375/i/G705307661/ |
| width | 0.375 |
| width_Attrib | Max. Bore Dia. |
| Shank Dia | 0.1875" (3/16) |
| Overall Length | 1.50" (1-1/2) |
| Neck Dia (In ) | 0.1000" |
| Max Bore Dia | 0.375" (3/8) |
| Min Bore | 0.1320" |
| Finish | UN |
| Offset | 0.0263" |
| Left/Right Hand | right hand |
| Projection | 0.0200" |
| Package Quantity | 1 |
| ASIN | B09JWSQ117 |
| AdultProduct | False |
| Amount | 31.05, 33.60 |
| Asin | B09JWSQ117 |
| 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 | 0.19, 17, 200 |
| IsBrandQuery | True |
| ItemClassification | BASE_PRODUCT |
| ItemName | Micro 100 QBT4-120375 Boring Tool - Chipbreaker - Quick Change, 132" Min Bore Dia, 3/8" Max Bore Depth, 020" Proj, 0263" Offset, 004" Corner Rad, 3/16" Shank Dia, 1-1/2" OAL, Uncoated |
| Item_name | Micro 100 QBT4-120375 Boring Tool - Chipbreaker - Quick Change, 132" Min Bore Dia, 3/8" Max Bore Depth, 020" Proj, 0263" Offset, 004" Corner Rad, 3/16" Shank Dia, 1-1/2" OAL, Uncoated |
| Item_type_keyword | boring-bars |
| Keyword | 120375 |
| Label | Micro 100 Tool Corporation |
| Length | 1.50 |
| Link | https://m.media-amazon.com/images/I/31rJ4UsaoVL._SL75_.jpg, https://m.media-amazon.com/images/I/31rJ4UsaoVL.jpg |
| List_price | 33.6 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G705307661 | 31.99 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/222000000/222415500/part_--QBT4120375---Micro100--90dd277da5.json`  
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MCP server: https://www.dataalchemy.com/mcp