Description
The Walter 03-B644 is a 7/8-14 UNF power tap with a plug chamfer, in high speed steel (M2) with a bronze finish. The page lists 3 flutes, a tap drill size of 13/16 in (20.6 mm, converted), an overall length of 5.63 in (143 mm, converted) and a square size of 0.52 in (13.2 mm, converted), and gives the hole type as through hole. It is sold as a single tap.
Per the manufacturer, this tap is designed for cutting threads with a reversible portable drill. It is a fine thread (NF) size.
Features
- 7/8-14 UNF power tap
- Plug chamfer
- fine thread (NF)
- High speed steel (M2), bronze finish
- 3 flutes
- Tap drill size 13/16 in (20.6 mm, converted)
- Overall length 5.63 in (143 mm, converted)
- Square size 0.52 in (13.2 mm, converted)
- For reversible portable drills, per the manufacturer
- Sold as a single tap
Specifications
| Specification | Value |
|---|---|
| Model | 03-B644 |
| Quantity | 1 piece |
| Type | power tap |
| Thread size | 7/8-14 UNF |
| Chamfer | plug |
| Flutes | 3 |
| Tap drill size | 13/16 in (20.6 mm, converted) |
| Overall length | 5.63 in (143 mm, converted) |
| Square size | 0.52 in (13.2 mm, converted) |
| Hole type | through hole |
| Material | high speed steel (M2) |
| Finish | bronze |
Part numbers
| Manufacturer part number (MPN) | Big Papa SKU |
|---|---|
| 03-B644 | BP-G-WAL-03B644 |

