HSS Straight Flute DIN 9 / BS 328
HSS
SOMTA Taper Pin Reamers (HSS)

Straight Flute  M (DIN 9)

Nominal Diameter

D

d2 d3 d4 l2 a l1
2 1.9 2.86 3.15 48 2.5 68
2.5 2.4 3.36 3.15 48 2.5 68
3 2.9 4.06 4 58 3.15 80
4 3.9 6.26 5 68 4 93
5 4.9 6.36 6.3 73 5 100
6 5.9 8 8 105 6.3 135
8 7.9 10.8 10 145 8 180
10 9.9 13.4 12.5 175 10 215
11 10.8 14.7 12 195 240
12 11.8 16 14 210 11.2 255
13 12.8 17 15 210 11.2 255
14 13.8 18 16 210 11.2 255
16 15.8 20.4 18 230 14 280
20 19.8 24.8 22.4 250 18 310
25 24.7 30.7 28 300 22.4 370

 

Straight Flute  INCH 

Nominal Diameter

D

a d1 d2 l2 l1
1/8 2.5 3.23 2.29 44.5 69.9
5/32 3.15 4.01 2.95 50.8 76.2
3/16 4 4.95 3.5 69.9 101.6
1/4 5 6.43 4.64 85.7 117.5
5/16 6.3 8.03 5.84 104.8 142.9
3/8 8 9.68 7.03 127 165.1
7/16 9 11.25 8.21 146.1 190.5
1/2 10 12.85 9.41 165.1 209.6
9/16 11.2 14.5 10.93 171.5 215.9
5/8 12.5 16.08 12.11 190.5 235
3/4 16 19.3 14.67 222.3 273.1
7/8 18 22.48 17.45 241.3 204.8
1″ 20 25.4 20.3 254 345
1.1/8 22.4 28.6 23.5 260 345
1.1/4 25 32 25.5 300 400
1.2/2 31.5 39 31.8 360 470

Product attributes

HSS

HSS

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