# Boring Bar, Reverse Boring, AlTiN, 0.0550 in, Micro-Quik Tool Holder

**Manufacturer:** Micro 100  
**MPN:** `QRB-180500X`

The Micro 100 QRB-180500X Quick Change Reverse Boring Tool features a solid carbide tool with AlTiN coating, designed for boring from the inside of a part towards its face. It has a minimum bore diameter of 0.180" (4.57 mm) and a maximum bore depth of 0.500" (12.7 mm). The tool's head is 0.100" (2.54 mm) long and projects 0.080" (2.03 mm), with a 0.005" (0.13 mm) tool radius and 0.2500" (6.4 mm) shank diameter.

## 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 |
| GraingerSku | 15U133 |
| UPC | 728709163672 |
| UnitOfMeasure | EA |
| Weight | 0.04, 0.03999959167451476398698014, 0.039999591674514764 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 0.44 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 2.25 |
| moq | 1 |
| MPN | QRB-180500X |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | -2 |
| SKU | G8138733 |
| snippet | Boring Bar, Reverse Boring, AlTiN, 0.0550 in, Micro-Quik Tool Holder |
| tierMinQty1 | 1 |
| tierPrice1 | 39.25 |
| url | https://www.zoro.com/micro-100-boring-bar-2-in-l-carbide-qrb-180500x/i/G8138733/ |
| width | 0.44 |
| EAN | 728709163672 |
| Part Number | QRB-180500X |
| Model | QRB-180500X |
| Product Group | BISS |
| Overall Length | 2 in |
| Shank Dia | 1/4 in |
| Bore Dia | .180" |
| Bore Depth | .500" |
| Radius | 0.0050 in |
| Min Bore Dia | 0.1800 in |
| Max Bore Depth | 1/2 in |
| Neck Dia | 0.1000" |
| Groove Width | 0.1000" |
| Corner Radius | 0.005" |
| Item | Boring Bar |
| Cutting Direction | Right Hand |
| Material | C2 Micrograin Carbide, Solid Carbide |
| Shank Material | Carbide |
| Angle | .080" |
| Application | For Reverse Boring |
| Finish | AlTiN Coated |
| Projection | 0.0800 in |
| Center to Cutting Tip | 0.0550 in |
| Finish - Machining | AlTiN |
| Offset Point | 0.0550 in |
| Overhang | 0.8530 in |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G8138733 | 39.25 | 1 | None | 1 |
| Raptor Supplies | AA7CXY | 59.0519475 | 1 | None | 1 |
| AmazonTP | B00Q8NKXNM | 49.77 | 1 | None | 1 |
| sustainablesupply.com | C1444235 | 53.82 | 1 | None | 1 |
| simsupply.com | ZO-G8138733 | 52.43 | 1 | 9 | 1 |

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Structured data: `/python/html6/product/500/253000000/253433500/part_--QRB180500X---Micro100--402835ddc9.json`  
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MCP server: https://www.dataalchemy.com/mcp