# Boring Bar, 1-1/2 in L, Carbide

**Manufacturer:** Micro 100  
**MPN:** `QPR-070300`

The Micro 100 QPR-070300 Quick Change Profiling Tool features a solid carbide construction with a 0.070" (1.78 mm) minimum bore diameter and 0.300" (7.6 mm) maximum bore depth. It has a 0.025" (0.64 mm) projection, 0.005" (0.13 mm) tool radius, and 0.1875" (4.8 mm) shank diameter. Designed for radial profiling, this tool is suitable for fine finishing and can be used in thread relief applications with its coolant-fed enabled shank design.

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro 100 |
| Manufacturer name | Micro 100 |
| Manufacturer | Micro 100, Micro 100 Tool Corporation |
| CategoryId | 6031 |
| DimensionUnit | inch |
| GraingerSku | 15U071 |
| Extra Product Name | Boring Bar, 1-1/2 in L, Carbide |
| UPC | 728709163061 |
| UnitOfMeasure | EA |
| Weight | 0.02, 0.022046001167587297, 0.0220460011675872978142162 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| extendedLead | 10 |
| extendedQty | -2 |
| height | 0.25 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 1.75 |
| moq | 1 |
| MPN | QPR-070300 |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | -2 |
| SKU | G8415757 |
| tierMinQty1 | 1 |
| tierPrice1 | 31.55 |
| url | https://www.zoro.com/micro-100-boring-bar-1-12-in-l-carbide-qpr-070300/i/G8415757/ |
| width | 0.25 |
| EAN | 728709163061 |
| Part Number | QPR-070300 |
| Model | QPR-070300 |
| Product Group | BISS |
| Shank Dia | 3/16 in |
| Overall Length | 1-1/2 in |
| Bore Dia | .070" |
| Bore Depth | .300" |
| Radius | 0.0050 in |
| Max Bore Depth | 0.3000 in |
| Min Bore Dia | 0.0700 in |
| Corner Radius | 0.005" |
| Groove Width | 0.0210" |
| Neck Dia | 0.0450" |
| Item | Boring Bar |
| Cutting Direction | Right Hand |
| Material | C2 Micrograin Carbide, Solid Carbide |
| Shank Material | Carbide |
| Application | For Reverse Boring |
| Angle | .025" |
| Finish | Uncoated |
| Projection | 0.0250 in |
| Measurement System | Fractional Inch |
| Features | Coolant Fed Enabled Shank Design;Corner Radius Profile;Split Geometry |
| Overhang | 0.5900 in |
| Center to Cutting Tip | -0.0238 in |
| Offset Point | -0.0238 in |
| Compatible with Product Type | Micro-Quik Tool Holder |
| ASIN | B00Q8NHEI4 |
| AdultProduct | False |
| Amount | 29.55 |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G8415757 | 31.55 | 1 | None | 1 |
| Grainger | 15U071 |  |  | None | 1 |
| Raptor Supplies | AA7CVG | 49.275135 | 1 | None | 1 |
| Amazon | B00Q8NHEI4 | 29.55 | 1 | None | 1 |
| AmazonTP | B00Q8NHEI4 | 53.8 | 1 | None | 1 |
| sustainablesupply.com | C1444175 | 41.56 | 1 | None | 1 |
| simsupply.com | ZO-G8415757 | 45.2 | 1 | 22 | 1 |

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Structured data: `/python/html6/product/500/267000000/267171500/part_--QPR070300---Micro100--c6ccf4a5f1.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp