BIG-SERT® Engineering Data
BIG-SERT INCH KITS
INSERT
Drill
C.Bore
Tap
SIZE
DRILL
SIZE
MIN. DIA
MIN. DEPTH
MAJOR DIA
1/4-20
7.8mm
.307
.355
0.50
.359
1/4-28
L
.290
.330
.055
.330
5/16-18
13/32
.406
.474
.085
.474
5/16-24
13/32
.406
.474
.085
.474
3/8-16
31/64
.484
.552
.085
.552
3/8-24
31/64
.484
.552
.085
.552
7/16-14
37/64
.578
.634
.085
.634
7/16-20
37/64
.578
.634
.085
.634
1/2-13
41/64
.640
.701
.085
.701
1/2-20
41/64
.640
.701
.085
.701
BIG-SERT METRIC KITS
INSERT
DRILL
C.BORE
TAP
SIZE
DRILL
SIZE
MIN. DIA
MIN. DEPTH
MAJOR DIA
M5x0.8
D
.246
.290
0.50
.290
M6x1.0
L
.290
.330
.055
.330
M8x1.25
13/32
.406
.474
.085
.474
M10x1.0
31/64
.484
.552
.085
.552
M10x1.25
31/64
.484
.552
.085
.552
M10x1.5
31/64
.484
.552
.085
.552
M11x1.25
37/64
.578
.634
.085
.634
M12x1.5
37/64
.578
.634
.085
.634
M12x1.75
37/64
.578
.634
.085
.634