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Jobber drills with straight shank DIN 338

Jobber drills with straight shank DIN 338

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

<strong>DIN</strong> 1897<br />

Range of applications<br />

Manufacturing specifications<br />

HSS<br />

Article no. 81120<br />

Type H<br />

R<br />

A specially developed stub drill for use in<br />

automatic and capstan lathes. For drilling<br />

hard, crumbly materials such as brass,<br />

magnesium alloys, bronze, phosphor<br />

bronze, zamak (thin sections), electron<br />

(thin sections), slate, mica and perspex.<br />

Point grinding: relieved cone<br />

Point angle: 118˚<br />

Web thinned: > Ø 14.00 mm to<br />

<strong>DIN</strong> 1412, form A<br />

Helix angle: smaller than standard<br />

Web thickness: standard<br />

Web taper: smaller than standard<br />

Flute form: wide<br />

Tolerance on Ø: h8<br />

Other manufacturing specifications to<br />

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

HSS<br />

Article no. 81130<br />

Type W<br />

R<br />

A specially developed stub drill for use in<br />

automatic and capstan lathes. For drilling<br />

soft materials forming long stringy chips,<br />

such as aluminium alloys (long chip),<br />

silumin, electron (thin sections),<br />

argalium, soft synthetic materials and<br />

wood.<br />

Point grinding: relieved cone<br />

Point angle: 130˚<br />

Web thinned: > Ø 2.36 mm to<br />

<strong>DIN</strong> 1412, form A<br />

Helix angle: greater than standard<br />

Web thickness: standard<br />

Web taper: none<br />

Flute form: wide<br />

Tolerance on Ø: h8<br />

Other manufacturing specifications to<br />

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

59

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