Bright (uncoated)
UNF Machine Tap Straight Flute
Material ID: 5975099
Straight flute tap with chamfer form C with a 2-3xP plug lead, for Unified National Fine thread UNF 1.1/8" with 12 TPI and 2B class of fit, dimensions according to DIN 374 standard with 22.0mm shank and 18.0mm square drive, powder metallurgical HSS-E with bright finish for 1.5xD through or blind hole threading in free machining and plain carbon steel
Thread Form, Unified Fine
DIN 374 – MF Thread Standard
Internal Inch Thread Medium Class of Fit
Through or Blind Hole Application
1.5×D Usable Tool Depth to Diameter Ratio
High Speed Cobalt Powder Metal Tool Material
Semi-Bottoming Tap Chamfer (2 – 3 Pitch Lead)
Straight Flute Geometry
Right Hand Rotation / Cutting
| Product name | E2781.1/8 |
| Product number (SAP) | 86015974 |
| EAN number | 7320760089590 |
| Ordering code ANSI | E2781.1/8 |
| Thread diameter size (TDZ) | 1.1/8 |
| Thread diameter - millimeter (TD) | 28.58 mm |
| Threads per inch (TPI) | 12 |
| Overall length - millimeter (OAL) | 150 mm |
| Overall length - inch (OAL) | 5.9055 inch |
| Threading length - millimeter (THL) | 28 mm |
| Threading length - inch (THL) | 1.1024 inch |
| Connection diameter - inch (DCON MS) | 0.8661 inch |
| Connection diameter - millimeter (DCON MS) | 22 mm |
| Flute count (NOF) | 4 |
| Clamping width - inch (WSC) | 0.7087 inch |
| Clamping width - millimeter (WSC) | 18 mm |
| Clamping Length - inch (LCS) | 0.8268 inch |
| Clamping Length - millimeter (LSC) | 21 mm |
| Premachined hole diameter - inch (PHD) | 1.0433 inch |
| Premachined hole diameter - millimeter (PHD) | 26.5 mm |
| Gross weight - grams | 435.6 |
| ISO | E2781.1/8 |