# Dormer B90312.0 5986959 Machine Reamer 12.00mm HSS Bright/Steam Tempered 8FL DIN 9 - MROSupply.com

***Dormer B90312.0 5986959 machine reamer, 12.00mm diameter, 8-flute, High Speed Steel (HSS) with Bright/Steam Tempered finish. DIN 9 standard, 255mm overall length, 210mm flute length, 16mm shank diameter. Right-hand cutting for K (cast iron), N (non-ferrous), and P (steel/cast steel) materials.***



## Product details:

- Catalog number: 5986959
- SKU: 6076432
- Price: ***$178.62*** Each
- Shipping: ***FREE SHIPPING***  ON ORDERS OVER $100
- Typically Ships in: 1 day
- Brand: [Dormer Pramet](https://www.mrosupply.com/brands/dormer-pramet/)
- Category: 
    - [Taper Reamers](htts://www.mrosupply.com/cutting-tools/holemaking/reamers/taper-reamers/)
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    - [Holemaking](htts://www.mrosupply.com/cutting-tools/holemaking/)
    - [Cutting Tools](htts://www.mrosupply.com/cutting-tools/)
- Unit of measure: each
- Weight: 0.514 lb
- Returns: Yes


## Product images:
- https://static.mrosupply.com/images/noimage.webp


## Product attributes;

  
- Basic Standard: DIN 9
  

  
- Clamping width - inch: 0.4409
  

  
- Clamping width - millimeter (WSC): 11.2
  

  
- Coating: Bright/ST
  

  
- Connection diameter - inch (DCON MS): 0.6299
  

  
- Connection diameter - millimeter (DCON MS): 16
  

  
- Connection diameter tolerance machine side (TCDCONMS): h11
  

  
- Cutting diameter step - millimeter: 11.8
  

  
- EDP number: 182581
  

  
- Flute count (NOF): 8
  

  
- Hand (Cutting direction): Right
  

  
- Length chip flute - millimeter (LCF): 210
  

  
- Material: HSS
  

  
- Material application: K - Cast iron, N - Non-ferrous metals, P - Steel and cast steel
  

  
- MID number: 5986959
  

  
- Nominal diameter: 12.0
  

  
- Ordering code ANSI: B90312.0
  

  
- Overall length - inch (OAL): 10.0394
  

  
- Overall length - millimeter (OAL): 255
  

  
- Shank: Cylindrical shank with Square
  

  
- Surface treatement: Steam Tempered
  

  
- Taper gradient - millimeter (Rate of taper): 0.02
  
## Product documents / software:

- [Catalog](https://documents.mrosupply.com/product_documents/60/82/6082114/PTD_UB_DORMER_EN_dmlMB1R.pdf)
- [Line Drawing](https://documents.mrosupply.com/product_documents/60/76/6076438/B903_DIM_GgZ8SYM.png)

## Product's reviews:
- End mill dormer hss - Excelente herramienta de mecanizado , buena calidad para corte de acero inoxidables y al carbono
- Excelente tiempo de entrega - Rapido tiempo de entrega
- Herramientas dormer - EXCELENTE PROVEEDOR ME GUSTA SU ATENCION Y PRESENTAN EXCELENTES PRECIOS