![Dormer brand logo](https://dy8j5n5de0wyg.cloudfront.net/userfiles/brand_logo_images/dormer_150x150.jpg)
1-11.5 E721 HSS NPT MACHINE TAP STR FL
DOR5977592
MFG #: 5977592
$168.01
/ EA
- System of Measurement: Imperial
- Thread Size: 1-11-1/2
- Chamfer: Semi-Bottoming
- Number of Flutes: 5
- Surface Treatment: TiN Coated
- Material: HSS
- Thread Length: 43mm
- Shank Diameter: 28.6mm
- Thread Standard: NPT
- Overall Length: 115mm
- Hand Direction: Right Hand
- Type: Straight Flute
- Series: E721
- Hook Type: Medium
- Square Size: 21.4mm
- Tap Drill Size: 29mm
- Application
- Item Features
- Standards
For through or blind holes and general purpose applications
- Medium hook for multi-material tapping
- Generally used for pipe fittings and couplings in most ferrous and non-ferrous materials
- The nominal size of a pipe tap is that of the pipe fitting to be tapped and not the actual size of the tap
- NPT threads require the use of a sealant such as teflon tape or pipe compound to ensure a tight joint
- TiN coating increases surface hardness and improves tool life
ANSI B94.9