Standard roll forged drill bits recommended for drilling in unalloyed and alloyed steel parts, cast steel up to 900 N/mm2, tempered gray also nodular cast iron, sintered steel, aluminum short-chip alloys, bronze.
| Unit: | pcs. |
| Code: | 1121RNHSS1120 |
| EAN: | 8592667014145 |
| Brand: | NÁSTROJE CZ |
| Your price | 128,00 Kč |
Standard roll forged twist drills recommended for drilling holes in metal materials.
Type "N" helix – helix angle 25–30°, point angle 118°.
Suitable for the following materials:
Packed in a PVC case.
Planning to sharpen your drill bit? We will show you how to do it in 10 simple steps. Read more in our article: How to Sharpen a Drill Bit
Discover how the professional cooperation with the Brno University of Technology took place, where NÁSTROJE CZ drill bits underwent long-term testing. Learn more in our article Drill Bit Tests with New Geometry
How old is the drill bit as a tool? Where were drill bits first used? Read more in our article History of Drill Bits
You can study the 1863 patent for drill bit improvements issued by S. A. Morse in our article Patent – Drill Bit Improvements