Centre drill bit, SC DIN 333, shape A
Centre drill solid carbide DIN 333 shape A type RN
DRL-CENT-MET-DIN333A-SC-D1,25MM
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Datasheets(X)
Product code | 6525 |
Material to be processed | Steel, Cast metal, Stainless steel, Copper, Brass, Plastic |
Standards | DIN 333 |
Form | A |
Countersink angle | 60 Degree |
Surface | Plain |
Cutting material | SC |
Number of cutting edges | 2 PCS |
Diameter (d1) | 1.25 mm |
Shank style | Cylindrical |
Length (l1) | 31.5 mm |
Shank diameter (d2) | 3.15 mm |
Diameter workpiece min./max. | 8-10 mm |
Tolerance of cutting edge diameter | k13 |
Tolerance of shank diameter | h7 |
Material of sub-group | General structural steels, Non-alloyed tempering steels < 1000 N/mm², Alloyed tempering steels < 1000 N/mm², Nitriding steels < 1300 N/mm², Grey cast iron, Malleable cast iron, Stainless steels < 850 N/mm², Stainless steels > 850 N/mm², Copper, Brass, Aluminium, Plastics |
Cutting values for solid carbide drill bits, uncoated | ||||||||
For dia. 0.8 to dia. 5 | ||||||||
Material designation | Tensile strength | Cooling | vc | f | ||||
from | to | Dia. 0.8-0.9 | Dia. 1-1.9 | Dia. 2-2.9 | Dia. 3-5 | |||
General structural steels | < 500 N/mm² | E | 60 | 75 | 0,020 | 0,040 | 0,060 | 0,100 |
500-850 N/mm² | E | 60 | 75 | 0,020 | 0,040 | 0,060 | 0,100 | |
Carbon steels | < 850 N/mm² | E | 60 | 75 | 0,020 | 0,040 | 0,060 | 0,100 |
850-1000 N/mm² | E | 55 | 65 | 0,020 | 0,040 | 0,060 | 0,100 | |
Unalloyed heat-treated steels | < 700 N/mm² | E | 60 | 75 | 0,020 | 0,040 | 0,060 | 0,100 |
700-850 N/mm² | E | 60 | 75 | 0,020 | 0,040 | 0,060 | 0,100 | |
850-1000 N/mm² | E | 55 | 65 | 0,010 | 0,030 | 0,050 | 0,090 | |
Alloyed heat-treated steels | 850-1000 N/mm² | E | 55 | 65 | 0,010 | 0,030 | 0,050 | 0,090 |
1000-1200 N/mm² | E | 50 | 60 | 0,010 | 0,030 | 0,050 | 0,090 | |
Unalloyed case-hardening steels | < 750 N/mm² | E | 60 | 75 | 0,010 | 0,030 | 0,050 | 0,090 |
Alloyed case-hardening steels | < 1000 N/mm² | E | 55 | 65 | 0,010 | 0,030 | 0,050 | 0,090 |
1000-1200 N/mm² | E | 50 | 60 | 0,010 | 0,030 | 0,050 | 0,090 | |
Nitriding steels | < 1000 N/mm² | E | 55 | 65 | 0,010 | 0,030 | 0,050 | 0,080 |
1000-1200 N/mm² | E | 50 | 60 | 0,010 | 0,030 | 0,050 | 0,080 | |
Tool steels | < 850 N/mm² | E | 55 | 65 | 0,010 | 0,030 | 0,050 | 0,080 |
850-1100 N/mm² | E | 50 | 60 | 0,010 | 0,030 | 0,050 | 0,080 | |
1100-1400 N/mm² | E | 30 | 40 | 0,010 | 0,030 | 0,050 | 0,080 | |
High-speed steels | 850-1200 N/mm² | E | 30 | 40 | 0,010 | 0,030 | 0,050 | 0,080 |
Wear-resistant constructional steel | 1350 N/mm² | E | 20 | 35 | 0,010 | 0,030 | 0,050 | 0,080 |
Spring steels | < 1200 N/mm² | E | 20 | 35 | 0,010 | 0,030 | 0,050 | 0,080 |
Stainless steels, sulphurated | < 700 N/mm² | E | 30 | 40 | 0,010 | 0,030 | 0,050 | 0,090 |
Stainless steels, austenitic | < 700 N/mm² | E | 30 | 40 | 0,010 | 0,030 | 0,050 | 0,090 |
< 850 N/mm² | E | 25 | 35 | 0,010 | 0,030 | 0,050 | 0,090 | |
Stainless steels, martensitic | < 1100 N/mm² | E | 25 | 35 | 0,010 | 0,030 | 0,050 | 0,090 |
Special alloys | < 1200 N/mm² | E | 15 | 25 | 0,010 | 0,030 | 0,050 | 0,080 |
Cast iron | < 180 HB | T/E | 70 | 100 | 0,010 | 0,030 | 0,050 | 0,090 |
> 180 HB | T/E | 70 | 100 | 0,010 | 0,030 | 0,050 | 0,090 | |
Nodular graphite, malleable iron | > 180 HB | E | 65 | 75 | 0,010 | 0,030 | 0,050 | 0,090 |
> 260 HB | E | 65 | 75 | 0,010 | 0,030 | 0,050 | 0,090 | |
Aluminium, aluminium alloys | < 530 N/mm² | E | 150 | 220 | 0,020 | 0,040 | 0,060 | 0,100 |
Aluminium, cast aluminium alloys < 10 % Si | < 600 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 |
Aluminium, cast aluminium alloys > 10 % Si | < 600 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 |
Magnesium, magnesium alloys | < 280 N/mm² | E | 150 | 220 | 0,020 | 0,040 | 0,060 | 0,100 |
Copper, low-alloy | < 350 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 |
Brass, short-chipping | < 600 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 |
Brass, long-chipping | < 600 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 |
Bronze, short-chipping | < 600 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 |
650-850 N/mm² | E | 100 | 180 | 0,020 | 0,040 | 0,060 | 0,100 | |
Bronze, long-chipping | < 850 N/mm² | E | 90 | 140 | 0,010 | 0,030 | 0,050 | 0,090 |
850-1200 N/mm² | E | 90 | 140 | 0,010 | 0,030 | 0,050 | 0,090 | |
Graphite | T | 70 | 100 | 0,010 | 0,030 | 0,050 | 0,090 |
Legend | |
E = emulsion | |
T = dry | |
vc = cutting speed [m/min] | |
f = feed [mm/r] | |
The suggested cutting values are reference values and must be adapted to the respective conditions. |