32
Abrasives
Gesswein
®
Blue Mounted Stones
These superior quality stones are made of aluminum oxide bonded with porce-
lain-type clays, which provide the greatest strength and rigidity required for fast
stock removal and longer life. The ceramic bond controls the release of the alu-
minum oxide abrasive grains. As each particle begins to dull, the bond dis-
charges it, allowing new abrasive grain to surface with fresh, sharp cutting edges.
Stones are securely bonded to their shanks and are guaranteed to run true.
Blue mounted stones can be dressed with our Tru-Stone #380-1030 (see p. 46).
These hard stones hold their shapes exceptionally well. Recommended for use
on hardened steel. All are 120 (fine) grit aluminum oxide with cobalt added to
provide lubrication while grinding. They cut well and leave a smooth surface. All
have 1
1
/
2
" long nickel-plated steel shanks. Shape dimensions shown in inches.
For recommended speeds, consult the American National Standard Institute for
full information on vitrified mounted wheels. Before using any abrasive product,
follow all safe operating guidelines with respect to eye protection, hand protec-
tion, hearing protection and respiratory protection (see p. 304 for details). Also
read the Material Safety Data Sheet (MSDS) to be aware of any inherent hazards
or cautions.
Available in plastic packages of 12
and boxes of 12, 36 or 72.
1
/
2
5
/
8
1
/
2
5
/
8
1
/
4
5
/
16
7
/
32
3
/
8
3
/
16
5
/
16
7
/
16
3
/
4
5
/
8
1
/
4
1
/
4
1
/
8
3
/
8
3
/
4
3
/
32
5
/
8
1
/
8
1
/
2
PKG./BOX Prices
Style
Grit Shank
Qty.
Item#
1
2-3
4-9
10+
B41
120
1
/
8
"
Pkg. of 12
304-0410
$18.00
1
/
8
"
Box of 36
300-0410
43.00 $38.70 $36.55 $32.25
3mm
Box of 36
308-0410
43.00
38.70
36.55
32.25
B42
120
1
/
8
"
Pkg. of 12
304-0420
19.00
1
/
8
"
Box of 36
300-0420
45.00
40.50
38.25
33.75
3mm
Box of 36
308-0420
45.00
40.50
38.25
33.75
B43
120
1
/
8
"
Pkg. of 12
304-0430
16.00
1
/
8
"
Box of 72
300-0430
76.00
68.40
64.60
57.00
3mm
Box of 72
308-0430
76.00
68.40
64.60
57.00
B44
120
1
/
8
"
Pkg. of 12
304-0440
16.00
1
/
8
"
Box of 72
300-0440
76.00
68.40
64.60
57.00
3mm
Box of 72
308-0440
76.00
68.40
64.60
57.00
B45
120
1
/
8
"
Pkg. of 12
304-0450
16.00
1
/
8
"
Box of 72
300-0450
76.00
68.40
64.60
57.00
3mm
Box of 72
308-0450
76.00
68.40
64.60
57.00
B51
120
1
/
8
"
Pkg. of 12
304-0510
19.00
1
/
8
"
Box of 72
300-0510
90.00
81.00
76.50
67.50
3mm
Box of 72
308-0510
90.00
81.00
76.50
67.50
B52
120
1
/
8
"
Pkg. of 12
304-0520
17.00
1
/
8
"
Box of 72
300-0520
83.00
74.70
70.55
62.25
3mm
Box of 72
308-0520
83.00
74.70
70.55
62.25
B53
120
1
/
8
"
Pkg. of 12
304-0530
17.00
1
/
8
"
Box of 72
300-0530
83.00
74.70
70.55
62.25
3mm
Box of 72
308-0530
83.00
74.70
70.55
62.25
B55
120
1
/
8
"
Pkg. of 12
304-0550
14.00
1
/
8
"
Box of 72
300-0550
65.00
58.50
55.25
48.75
3mm
Box of 72
308-0550
65.00
58.50
55.25
48.75
B71
120
1
/
8
"
Pkg. of 12
304-0710
17.00
1
/
8
"
Box of 36
300-0710
42.00
37.80
35.70
31.50
3mm
Box of 36
308-0710
42.00
37.80
35.70
31.50
B72
120
1
/
8
"
Pkg. of 12
304-0720
15.00
1
/
8
"
Box of 36
300-0720
37.00
33.30
31.45
27.75
3mm
Box of 36
308-0720
37.00
33.30
31.45
27.75
B41
B42
B43
B44
B45
B51
B52
B53
B55
B71
B72