Jobber drills with straight shank DIN 338

Quality control requirement
for twist drills (not micro-precision drills)
test criteria
tested number of items:
1
up to
3
up to
5
up to
10
up to
15
net prices
per test criterion
drill diameter tapering of diameter shank diameter driving tangs, knock-out tangs Morse taper concentricity tolerance web thickness land width difference in height of cutting edge total pitch deviation point angle side rake angle clearance angle special grinds chisel edge optical marking of test tools • • • • • • • • •
net prices for the tested number of items
for all test criteria
• • • • • • • • •
up to
20
plus quality control requirement
total price: • • • • • • • • •
up to
30
up to
50
up to
100
for micro-precision drills
test criteria
tested number of items:
1
up to
3
up to
5
up to
10
up to
15
net prices
per test criterion
total length pilot length coaxiality shank diameter Fasenbreite web thickness point angle clearance angle optical marking of test tools • • • • • • • • •
net prices for the tested number of items
for all test criteria
• • • • • • • • •
up to
20
plus quality control requirement
total price: • • • • • • • • •
up to
30
up to
50
up to
100
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