# Micro 100

**Manufacturer:** Micro 100  
**MPN:** `QBT-4902100X`

The Micro 100 QBT-4902100X Quick Change Boring Tool features a top rake chip breaker for freer cutting and a polished face to reduce galling. Optimized for finishing operations, this tool has a 0.490" (12.5 mm) minimum bore diameter and a 2.100" (53.3 mm) maximum bore depth. It also has a 0.075" (1.91 mm) projection and a 0.006" (0.10 mm) tool radius. The tool is solid carbide with an AlTiN coating and has a 0.5000" (12.7 mm) shank diameter.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro 100 |
| Manufacturer name | Micro 100 |
| Manufacturer | Micro 100, Micro 100 Tool Corporation |
| DimensionUnit | inch |
| GraingerSku | 15T913 |
| Extra Product Name | Micro 100 |
| UPC | 728709155646 |
| UnitOfMeasure | EA |
| Weight | 0.23, 0.29, 0.29999999974842282, 0.29999999974842284 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| extendedLead | 5 |
| height | 0.69 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 3.75 |
| moq | 1 |
| MPN | QBT-4902100X |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | 0 |
| qtySource | qtyInStockOverride |
| SKU | G8251485 |
| tierMinQty1 | 1 |
| tierPrice1 | 101.03 |
| url | https://www.zoro.com/micro-100-boring-bar-3-12-in-l-carbide-qbt-4902100x/i/G8251485/ |
| width | 0.69 |
| EAN | 728709155646 |
| Part Number | QBT-4902100X |
| Model | QBT-4902100X |
| Product Group | BISS |
| Item | Boring Bar |
| Shank Dia | 1/2 in |
| Overall Length | 3-1/2 in |
| Bore Dia | .490" |
| Cutting Direction | Right Hand |
| Bore Depth | 2.10" |
| Material | C2 Micrograin Carbide, Solid Carbide |
| Shank Material | Carbide |
| Angle | .075" |
| Application | For Boring Top Rake |
| Finish | AlTiN Coated |
| Radius | 0.0060 in |
| Projection | 0.0750 in |
| Offset Point | 0.2400 in |
| Features | Coolant Fed Enabled Shank Design;Corner Radius Profile;Polished Face for Reducing Galling |
| Min Bore Dia | 0.4900 in |
| Center to Cutting Tip | 0.2400 in |
| Max Bore Depth | 2.1000 in |
| Overhang | 2.5400 in |
| Measurement System | Fractional Inch |
| Series | QBT |
| Boring Bar Type | Top Rake Chipbreaker |
| Side Cutting Edge Angle | 20 Degrees |
| Cutting Application | Boring, Finishing |
| Finish - Machining | AlTiN |
| Compatible with Product Type | Micro-Quik Tool Holder |
| Neck Dia | 0.4150" |
| Offset | 0.208" |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G8251485 | 101.03 | 1 | None | 1 |
| Grainger | 15T913 |  |  | None | 1 |
| Raptor Supplies | AA7CNF | 163.0548855 | 1 | None | 1 |
| AmazonSC | B00Q8LYJT8 |  |  | None | 1 |
| sustainablesupply.com | C1443453 | 130.06 | 1 | None | 1 |

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Structured data: `/python/html6/product/500/53000000/53028500/part_--QBT4902100X---Micro100--f09e19c227.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp