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. 82410
Type N
R
For drilling extremely deep holes.
Feeds, speeds and workholding must be
carefully controlled in order to avoid
vibration. Frequent withdrawal of the drill
(woodpeckering) is vitally important as
is a copious flow of the correct type of
coolant. If tolerances in the hole allow,
a greater depth of penetration can be
achieved by a slightly off-center point
grind.
Please note: This drill is not recommended
for crankshaft drilling.
Point grinding: relieved cone
Point angle: 118˚
Web thinned: to DIN 1412. form A
Helix angle: standard
Web thickness: standard
Web taper: standard
Flute form: standard
Tolerance on Ø: h8
Other manufacturing specifications to
DIN 1414
8.00...28.00 HSS
#d1#. 82410
38
nom.-Ø
mm
Morse
taper
total
length
mm
flute
length
mm
8.00 1 330 210 ○
9.00 | 345 220 ○
9.50 | 345 220 ○
10.00 | 360 235 ○
10.50 | 360 235 ○
11.00 | 375 250 ○
14.00 1 410 275 ○
15.00 2 425 275 ○
16.00 | 445 295 ○
18.00 | 465 310 ○
19.00 | 465 310 ○
20.00 | 490 325 ○
21.50 | 515 345 ○
22.50 | | | ○
23.00 2 515 345 ○
R
N
29.50...45.00 HSS
nom.-Ø
mm
Morse
taper
total
length
mm
#d2#. 82410
38
flute
length
mm
23.50 3 535 345 ○
25.50 | 555 365 ○
27.50 | 580 385 ○
29.00 | | | ○
29.50 3 580 385 ○
32.50 4 635 410 ○
34.50 | 665 430 ○
49.00 4 765 510 ○
R
N
steam tempered
nitrided lands
132