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Jobber drills with straight shank DIN 338

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<strong>Jobber</strong> <strong>drills</strong> <strong>with</strong> <strong>straight</strong> <strong>shank</strong><br />

<strong>DIN</strong> <strong>338</strong><br />

Range of applications<br />

Manufacturing specifications<br />

HSS<br />

Article no. 84502<br />

Type FN<br />

F<br />

R<br />

A robust tool for drilling in difficult conditions<br />

such as when swarf congestion<br />

prevents an adequate flow of coolant.<br />

For use in steel and cast iron having a<br />

hardness of up to 1000 N/mm 2 . Not<br />

recommended for nickel-chrome steels<br />

or similar materials.<br />

Well suited for drilling depths greater<br />

than 3 x D (wide flutes).<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: greater than standard<br />

Web taper: none<br />

Flute form: very wide flutes <strong>with</strong><br />

„rolled-off“ heels<br />

Tolerance on Ø: h8<br />

Other manufacturing specifications to<br />

<strong>DIN</strong> 1414<br />

HSS-E<br />

Article no. 84504<br />

Type FN<br />

F<br />

R<br />

High heat-resistant drill <strong>with</strong> wide chip<br />

space. Suitable for drilling alloyed and<br />

unalloyed steels and castings <strong>with</strong> a<br />

tensile strength over 800 N/mm 2 .<br />

Particularly suitable for drilling hot and<br />

cold-rolled steels, antifriction bearing<br />

steel, high alloyed steels as well as case<br />

hardening and heat-treatable steels.<br />

Well suited for drilling depths greater<br />

than 3 x D (wide flutes).<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: greater than standard<br />

Web taper: none<br />

Flute form: very wide flutes <strong>with</strong><br />

„rolled-off“ heels<br />

Tolerance on Ø: h8<br />

Other manufacturing specifications to<br />

<strong>DIN</strong> 1414<br />

HSS-E<br />

Article no. 84505<br />

Type S<br />

F<br />

R<br />

Extra rigid, high heat-resistant drill <strong>with</strong><br />

large helix angle (35°). Preferential application<br />

in titanium and titanium alloys,<br />

stainless steels, acid and heat resisting<br />

austenitic steels. Also suitable for high<br />

tensile strength steels from approx.<br />

900 N/mm 2 and above, forming short<br />

chips (antifriction bearing steel) <strong>with</strong><br />

shallow drilling depth up to approx. 3 x D.<br />

Point grinding: relieved cone<br />

Point angle: 130˚<br />

Web thinned: from Ø 0,95 mm upwards<br />

special web thinning<br />

Helix angle: greater than standard (35˚)<br />

Web thickness: greater than standard<br />

Web taper: standard<br />

Flute form: standard<br />

Tolerance on Ø: h8<br />

Limited suitability for special alloys such<br />

as Hastelloy, Inconel, Nimonic etc.<br />

Other manufacturing specifications to<br />

<strong>DIN</strong> 1414<br />

F<br />

FIRE-coated<br />

40

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