H.S.S. Woodworking Forstner Bits

7 piece set 1/4" ~1"

 

5 piece set 15 ~ 35

 

Pieces per set
Specification
7
1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1"
16
1/4", 3/8", 1/2", 5/8", 3/4", 7/8",1", 1 1/8", 1 1/4",
1 3/8", 1 1/2", 1 5/8", 1 3/4", 1 7/8", 2", 2 1/8"
5
15, 20, 25, 30, 35

16 piece set 1/4" ~ 2 1/8"

 

 

 
 

 

British System
 
Flute Dia.
D
Middle Shank Dia.
d
Small Shank Dia.
d
Length
L
1/4"
6
9.5
80
3/8"
7.5
9.5
90
1/2"
8
9.5
90
5/8"
10
9.5
90
3/4"
10
9.5
90
7/8"
10
9.5
90
1"
12
9.5
90
1 1/8"
12
9.5
90
1 1/4"
12
9.5
90
1 3/8"
12
9.5
90
1 1/2"
15
9.5
90
1 5/8"
15
9.5
90
1 3/4"
15
9.5
90
1 7/8"
15
9.5
90
2"
15
9.5
90
2 1/8"
15
9.5
90
2 1/4"
15
12.7
159
2 5/16"
15
12.7
159
2 3/8"
15
12.7
159
2 1/2"
17.5
12.7
159
2 5/8"
17.5
12.7
159
2 3/4"
17.5
12.7
159
2 7/8"
19
12.7
159
3"
19
12.7
159
3 1/8"
19
12.7
159
3 1/4"
20.5
12.7
159
3 3/8"
20.5
12.7
159
3 1/2"
20.5
12.7
159
3 5/8"
20.5
12.7
159
3 3/4"
20.5
12.7
159
3 7/8"
20.5
12.7
159
4"
22
12.7
159
4 1/8"
22
12.7
159
4 1/4"
22
12.7
159
4 3/8"
22
12.7
159
4 1/2"
22
12.7
159
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