Jobber drills with straight shank DIN 338

Extra length taper shank twist drills
DIN 1870, series 2
Range of applications
Manufacturing specifications
HSS
Article no. 82440
Type FN
R
A robust tool for drilling very deep holes
in difficult conditions as when swarf congestion
prevents an adequate flow of
coolant to the drill point (Not suitable for
lubrication holes in crankshafts - use
special purpose drill for this application).
For use in steels and cast iron with a
tensile strength of up to 1000 N/mm 2 .
Please note: This drill is not recommended
for crankshaft drilling.
Point grinding: relieved cone
Point angle: 130˚
Web thinned: to DIN 1412, form A
Helix angle: greater than standard
Web thickness: considerably greater
than standard
Web taper: none
Flute form: very wide flute with special
„rolled-off“ heels
Tolerance on Ø: h8
Other manufacturing specifications to
DIN 1414
9.50...25.00 HSS
#d1#. 82440
36
HSS
#d2#. 82440
36
R
R
nom.-Ø
mm
Morse
taper
total
length
mm
flute
length
mm
FN
nom.-Ø
mm
Morse
taper
total
length
mm
flute
length
mm
FN
8.00 1 330 210 ○
9.50 | 345 220 ○
9.80 | 360 235 ○
10.00 | | | ○
10.50 | 360 235 ○
12.00 | 395 260 ○
12.50 | | | ○
13.00 | 395 260
13.50 | 410 275 ○
13.80 | | | ○
14.00 1 410 |
14.50 2 425 | ○
15.00 | 425 275
15.50 | 445 295 ○
16.00 | | |
16.50 | | | ○
17.00 | 445 295 ○
17.50 | 465 310 ○
18.00 | | | ○
18.50 | | | ○
19.00 2 465 310 ○
19.50 2 490 325 ○
19.75 | | | ○
20.00 | | |
21.00 | 490 325 ○
21.50 | 515 345 ○
22.00 | | | ○
22.50 | | | ○
23.00 2 515 | ○
23.50 3 535 345 ○
24.00 | 555 365 ○
25.00 | | | ○
26.00 | 555 365 ○
27.00 | 580 385
28.00 | | | ○
29.00 | | | ○
29.50 | | | ○
30.00 3 580 385 ○
133