# Boring Bar Holder, QTHM, Overall Length 5.8000 in, Shank Type - Machining Straight, Shank Dia. 16.00mm, For Use With Lathe Applications Requiring Longer Reach, Coolant Fed Coolant Through, Finish - Machining Black Oxide

**Manufacturer:** Micro-Quik  
**MPN:** `QTHM-516L`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Micro-Quik |
| Manufacturer name | Micro-Quik |
| Manufacturer | Micro-Quik |
| CategoryId | 13099 |
| CategoryIdL1 | 8 |
| CategoryIdL2 | 7846 |
| CategoryIdL3 | 13099 |
| CategoryL1 | Tools & Machining |
| CategoryL2 | Workholding & Machine Tool Accessories |
| CategoryL3 | Milling & Drilling Toolholders |
| CategoryL4 | End Mill Holders |
| DimensionUnit | inch |
| GTIN | 728709167434 |
| GraingerSku | 18E365 |
| UPC | 728709167434 |
| UnitOfMeasure | EA |
| Weight | 0.41 |
| WeightUnit | lbs |
| cali_prop65_orglabel | False |
| cali_prop65_whtlabel | False |
| countryOfOrigin | US |
| height | 1.13 |
| jsonUrlData | 924526ffbdad25e5923b |
| length | 5.88 |
| moq | 1 |
| MPN | QTHM-516L |
| multiple | 1 |
| qtyInStock | 0 |
| qtyInStockOverride | -2 |
| SKU | G8057576 |
| tierMinQty1 | 1 |
| tierPrice1 | 159.99 |
| url | https://www.zoro.com/micro-quik-quick-change-tool-holder-metric-steel-qthm-516l/i/G8057576/ |
| width | 1.13 |
| Bore Dia | 5/16" |
| Overall Length | 5.8000 in |
| Shank Dia | 16.00mm |
| Shank Size | 5/16 in |
| Head Dia | 7/8 in |
| Item | Boring Bar Holder |
| Type | Quick Change Boring Head Holder |
| For Use With | Lathe Applications Requiring Longer Reach |
| Coolant Fed | Coolant Through |
| Style | Metric |
| Shank | .3125" |
| Series | QTHM |
| Material - Machining | High Speed Steel |
| Finish - Machining | Black Oxide |
| Shank Type - Machining | Straight |
| Finish | UN |
| Product Type | Boring Bar Holder |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Zoro | G8057576 | 159.99 | 1 | None | 1 |
| Grainger | 18E365 |  |  | None | 1 |
| sustainablesupply.com | C1444558 | 177.22 | 1 | None | 1 |
| simsupply.com | ZO-G8057576 | 189.44 | 1 | 22 | 1 |

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Structured data: `/python/html6/product/500/99500000/99722500/part_--QTHM516L---MicroQuik--85d0192dcd.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp