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

Type 27 Angle Grinder (20 degrees) Steel
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 4.60
4 " 1/4 " 5/8 " 08-B 400 27 A-24-HPS 15,300 25 4.60
4 " 1/4 " 3/8 " 08-B 410 27 A-24-HPS 15,300 25 4.60
4-1/2 " 1/4 " 7/8 " 08-B 460 27 A-24-HPS 13,300 25 4.20
5 " 1/4 " 7/8 " 08-B 510 27 A-24-HPS 12,200 25 4.60
6 " 1/4 " 7/8 " 08-B 600 27 A-24-HPS 10,200 25 6.35
7 " 1/4 " 7/8 " 08-B 710 27 A-24-HPS 8,600 25 7.70
9 " 1/4 " 7/8 " 08-B 910 27 A-24-HPS 6,600 25 11.60
Type 28 Angle Grinder 5 Steel
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 11.50
9 " 1/4 " 7/8 " 08-B 901 28 A-24-HPS 6,600 25 14.65
Yes Type 27S Angle Grinder (20 degrees) Steel
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-24-HPS 13,300 20 4.20
4-1/2 " 1/4 " 5/8"-11 " 08-B 455 27S A-24-HPS 13,300 10 7.50
5 " 1/4 " 5/8-11 " 08-B 500 27S A-24-HPS 12,200 20 4.60
5 " 1/4 " 5/8"-11 " 08-B 505 27S A-24-HPS 12,200 10 7.75
6 " 1/4 " 5/8-11 " 08-B 630 27S A-24-HPS 10,200 20 7.00
7 " 1/4 " 5/8"-11 " 08-B 715 27S A-24-HPS 8,600 10 10.50
9 " 1/4 " 5/8"-11 " 08-B 915 27S A-24-HPS 6,600 10 14.25
Yes Type 28S Angle Grinder 5 Steel
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 5.50
5 " 1/4 " 5/8-11 " 08-B 501 28S A-24-HPS 13,300 20 6.30
7 " 1/4 " 5/8"-11 " 08-B 706 28S A-24-HPS 8,600 10 14.25
9 " 1/4 " 5/8"-11 " 08-B 906 28S A-24-HPS 6,600 10 17.05

Applications

  • Deburring
  • Grinding welds
  • Shaping
  • Preparing weld edges