![Dormer brand logo](https://dy8j5n5de0wyg.cloudfront.net/userfiles/brand_logo_images/dormer_150x150.jpg)
5/16 B301 HSS HAND TAPER PIN REAMER BLK
DOR5986406
MFG #: 5986406
$66.50
/ EA
- Flute Length: 105mm
- Flute Type: Straight
- Shank Type: Square
- Small End Diameter: 5.84mm
- Taper Pin Size/Number: 5/16in
- Type: Conical Square Drive
- Series: B301
- Number of Flutes: 6
- Shank Diameter: 8.03mm
- Overall Length: 143mm
- Material: HSS
- Surface Treatment: Bright/Steam Oxide
- Hand Direction: Right Hand
- Application
- Item Features
- Standards
For reaming holes without interrupted cuts such as keyways and cross sections
- 6.3 mm square tang
- Straight flute reamers are the most common and used in general purpose though-hole applications
- Designed to convert a straight hole into a tapered hole into which standard taper pins will fit
- The square on the shank is suitable for holding a tap wrench or vise, depending on whether the reamer or part is rotating, making them ideal for hand use
- Steam tempering gives a strongly adhering blue oxide surface that acts to retain cutting fluid and prevent chip to tool welding, thereby counteracting the formation of a built-up edge
- Steam tempering can be applied to any bright tool but is most effective on drills and taps
- +0.0050 tolerance
BS328