Jobber drills with straight shank DIN 338
Jobber drills with straight shank DIN 338
Jobber drills with straight shank DIN 338
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Oil feed <strong>drills</strong> <strong>with</strong> taper <strong>shank</strong><br />
Works Standard<br />
Range of applications<br />
Manufacturing specifications<br />
HSS<br />
Article no. 82521<br />
Type N<br />
R<br />
For horizontal, oblique and inverted drilling<br />
operations, especially for hole depths<br />
exceeding 5 times the drill diameter. For<br />
drilling laminated sheet metal, steel and<br />
cast steel, grey iron, austenitic steels of<br />
normal machinability up to a tensile<br />
strength of 800 N/mm 2 .<br />
Compared <strong>with</strong> conventional drill performance,<br />
the tool life is increased, since the<br />
coolant, delivered directly to the cutting<br />
edge, provides optimum cooling and lubrication<br />
conditions and assists in the rapid<br />
evacuation of swarf.<br />
Suitable for drilling <strong>with</strong> drill bushings.<br />
Point grinding: relieved cone<br />
Point angle: 118˚<br />
Web thinned: to <strong>DIN</strong> 1412, form A<br />
Helix angle: standard<br />
Web thickness: standard<br />
Web taper: standard<br />
Flute form: standard<br />
Tolerance on Ø: h8<br />
Shank: lengthened<br />
Oil feed: axial through the morse<br />
taper <strong>shank</strong><br />
Other manufacturing specifications to<br />
<strong>DIN</strong> 1414<br />
HSS<br />
Article no. 82535<br />
Type FN<br />
R<br />
Special taper <strong>shank</strong> <strong>drills</strong> <strong>with</strong> two coolant<br />
channels to deliver the coolant under<br />
pressure directly to the cutting edges.<br />
Maximum coolant circulation and continuous<br />
chip flush-out ensure long service<br />
life and permit efficient drilling of deep<br />
holes especially in the vertical and horizontal<br />
position. For machining of cast<br />
steel alloyed and non-alloyed up to<br />
approx. 900 N/mm 2 , malleable cast iron,<br />
aluminium alloys short-chipping, brass,<br />
electrolytic copper, bronze, gun metal.<br />
Point grinding: relieved cone<br />
Point angle: 118˚<br />
Web thinned: to <strong>DIN</strong> 1412, form A<br />
Helix angle: greater than standard<br />
Web thickness: greater than standard<br />
Web taper: none<br />
Flute form: wide flutes<br />
Tolerance on Ø: h8<br />
Shank: lengthened<br />
Oil feed: axial through the morse<br />
taper <strong>shank</strong><br />
Other manufacturing specifications to<br />
<strong>DIN</strong> 1414<br />
HSS-E<br />
Article no. 82525<br />
Type FN<br />
R<br />
For horizontal, oblique and inverted drilling<br />
operations, especially for hole depths<br />
exceeding 5 times the drill diameter. For<br />
drilling cast steel, cast iron, stainless<br />
steel, acid and heat resistant steels <strong>with</strong> a<br />
tensile strength above 800 N/mm 2 up to<br />
1300 N/mm 2 . There is an excellent tool life<br />
resulting from the high heat resistance.<br />
The large flute section and increased helix<br />
angle improve the swarf evacuation to<br />
such an extent that even deep holes do<br />
not normally require drill <strong>with</strong>drawal.<br />
Suitable for drilling <strong>with</strong> bushings.<br />
Point grinding: relieved cone<br />
Point angle: 130˚<br />
Web thinned: to <strong>DIN</strong> 1412, form A<br />
Helix angle: greater than standard<br />
Web thickness: considerably greater<br />
than standard<br />
Wep taper: none<br />
Flute form: very wide flute <strong>with</strong> special<br />
„rolled-off“ heels<br />
Tolerance on Ø: h8<br />
Shank: lengthened<br />
Oil feed: axial through the morse<br />
taper <strong>shank</strong><br />
Other manufacturing specifications to<br />
<strong>DIN</strong> 1414<br />
steam tempered<br />
136
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