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Twist drill bit assortment DIN 338 HSS TIN head type RN

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Twist drill bit assortment DIN 338 HSS TIN head type RN

155-piece in system box, TiN head coated steel precision drill for general, broad applications in steel up to 850 N/mm² strength and cast iron.

  • Number of pieces in assortment/set: 155 PCS
  • Quality: ZEBRA-Premium
  • Standard / drilling depth: DIN 338 / 5xD
  • Shank style: Cylindrical
  • Surface: TiN
  • Cutting material: HSS
  • Suitable for drill (points system): 3 of 4 points
  • Suitable for cordless drills (points system): 3 of 4 points
  • Suitable for upright drilling machine (points system): 3 of 4 points
  • Suitable for milling-drilling centre (points system): 2 of 4 points
  • Service life (points system): 4 of 4 points
  • Drilling speed (point system): 3 of 4 points
  • Bore hole quality (point system): 4 of 4 points
  • Versatility (points system): 2 of 4 points
  • Drilling behaviour (point system): 3 of 4 points
  • Self-centring: Yes

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Art.-no. Number of pieces in assortment/set Quality Standard / drilling depth Shank style Quantity PU
155 PCS ZEBRA-Premium DIN 338 / 5xD Cylindrical
1 pcs

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Structure of our article number

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:

Information on price display

Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

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Price for 1 unit
Price for 100 units
Price for 1000 units


The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).
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Technical information

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Precise & Quick drilling

  • The sturdy twist drill with its short design provides for precise drilling.

  • Very precise tip and the related precise cutting geometry, a constant drilled-hole quality is ensured, ideal for core hole drilling.

  • Optimized crosswise drill point narrowing provides 20% lower feed force saving compared with conventional drill bit.


The crosswise grinding ensures an excellent centering effect even on domed surfaces, eliminating the need for center-punching or piloting

Long tool life

The TiN coating increase the heat resistance up to 600º, which provides 3 times more tool life in comparison with a non-coated HSS drill.


The drill shank is turned from the 13.0 mm dia. to a 12.7 mm dia.