HP™
High performance grinding wheel for every day grinding




Walter HP cup wheels are designed for rough grinding or snagging work. Each wheel has a deeply anchored wrap-around steel hub for maximum safety and long life. A 5/8”–11 threaded arbor for SPIN-ON mounting reduces downtime for wheel changes and helps you finish your toughest grinding jobs faster.
Features
- Extra long wheel life
- High performance wheel that grinds off metal fast
Materials
- Steel
Technical Specifications



Dia. | Thick. | Arbor | Order No | Type | Grade | Max RPM | Std Pkg | List Price | Order |
---|---|---|---|---|---|---|---|---|---|
3 " | 1/4 " | 3/8 " | 08-B 310 | 27 | A-24-HPS | 20,000 | 25 | 4.90 | |
4 " | 1/4 " | 5/8 " | 08-B 400 | 27 | A-24-HPS | 15,300 | 25 | 4.90 | |
4 " | 1/4 " | 3/8 " | 08-B 410 | 27 | A-24-HPS | 15,300 | 25 | 4.90 | |
4-1/2 " | 1/4 " | 7/8 " | 08-B 460 | 27 | A-30 | 13,300 | 25 | 4.50 | |
5 " | 1/4 " | 7/8 " | 08-B 510 | 27 | A-30 | 12,200 | 25 | 4.90 | |
6 " | 1/4 " | 7/8 " | 08-B 600 | 27 | A-24-HPS | 10,200 | 25 | 6.75 | |
7 " | 1/4 " | 7/8 " | 08-B 710 | 27 | A-24-HPS | 8,600 | 25 | 8.20 | |
9 " | 1/4 " | 7/8 " | 08-B 910 | 27 | A-24-HPS | 6,600 | 25 | 12.50 |



Dia. | Thick. | Arbor | Order No | Type | Grade | Max RPM | Std Pkg | List Price | Order |
---|---|---|---|---|---|---|---|---|---|
7 " | 1/4 " | 7/8 " | 08-B 701 | 28 | A-24-HPS | 8,600 | 25 | 12.00 | |
9 " | 1/4 " | 7/8 " | 08-B 901 | 28 | A-24-HPS | 6,600 | 25 | 15.50 |




Dia. | Thick. | Arbor | Order No | Type | Grade | Max RPM | Std Pkg | List Price | Order |
---|---|---|---|---|---|---|---|---|---|
4-1/2 " | 1/4 " | 5/8-11 " | 08-B 450 | 27S | A-30 | 13,300 | 20 | 4.50 | |
4-1/2 " | 1/4 " | 5/8"-11 " | 08-B 455 | 27S | A-30 | 13,300 | 10 | 8.00 | |
5 " | 1/4 " | 5/8-11 " | 08-B 500 | 27S | A-30 | 12,200 | 20 | 4.90 | |
5 " | 1/4 " | 5/8"-11 " | 08-B 505 | 27S | A-30 | 12,200 | 10 | 8.25 | |
7 " | 1/4 " | 5/8"-11 " | 08-B 715 | 27S | A-24-HPS | 8,600 | 10 | 11.00 | |
9 " | 1/4 " | 5/8"-11 " | 08-B 915 | 27S | A-24-HPS | 6,600 | 10 | 15.00 |




Dia. | Thick. | Arbor | Order No | Type | Grade | Max RPM | Std Pkg | List Price | Order |
---|---|---|---|---|---|---|---|---|---|
4 1/2 " | 1/4 " | 5/8-11 " | 08-B 451 | 28S | A-24-HPS | 13,300 | 20 | 5.80 | |
5 " | 1/4 " | 5/8-11 " | 08-B 501 | 28S | A-24-HPS | 13,300 | 20 | 6.70 | |
7 " | 1/4 " | 5/8"-11 " | 08-B 706 | 28S | A-24-HPS | 8,600 | 10 | 15.00 | |
9 " | 1/4 " | 5/8"-11 " | 08-B 906 | 28S | A-24-HPS | 6,600 | 10 | 18.00 |
Applications
- Deburring
- Grinding welds
- Preparing weld edges
- Shaping