NC centre drill solid carbide 90°
Centre drill NC 90° solid carbide WN
DRL-SPRL-MET-NC90-SC-D10,0MM
Art.-no.
5443002755
EAN 4055375891445
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Special drill bit for especially precise and rapid spot drilling on NC machines, jig boring machines etc. For centring and chamfering threaded drill holes.
Product information
Datasheets(X)
 | |
Product code | 6225 |
Material to be processed | Steel, Cast metal, Stainless steel, Copper, Brass, Plastic |
Standards | CS |
Surface | Plain |
Cutting material | SC |
Angle of the tip | 90 Degree |
Number of cutting edges | 2 PCS |
Diameter (d1) | 10 mm |
Shank style | Cylindrical |
Length (l1) | 89 mm |
Chip flute length (l2) | 25 mm |
Shank diameter (d2) | 10 mm |
Tolerance of cutting edge diameter | h6 |
Tolerance of shank diameter | h6 |
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. 4 - dia. 20 | |||||||||
| Material designation | Tensile strength | Cooling | vc | f | |||||
| from | to | Dia. 4-5.9 | Dia. 6-8.9 | Dia. 9-11.9 | Dia. 12-15.9 | Dia. 16-20 | |||
| General structural steels | < 500 N/mm² | E | 60 | 75 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| 500-850 N/mm² | E | 60 | 75 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 | |
| Carbon steels | < 850 N/mm² | E | 60 | 75 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| 850-1000 N/mm² | E | 55 | 65 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 | |
| Unalloyed heat-treated steels | < 700 N/mm² | E | 60 | 75 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| 700-850 N/mm² | E | 60 | 75 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 | |
| 850-1000 N/mm² | E | 55 | 65 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 | |
| Alloyed heat-treated steels | 850-1000 N/mm² | E | 55 | 65 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| 1000-1200 N/mm² | E | 50 | 60 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 | |
| Unalloyed case-hardening steels | < 750 N/mm² | E | 60 | 75 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| Alloyed case-hardening steels | < 1000 N/mm² | E | 55 | 65 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| 1000-1200 N/mm² | E | 50 | 60 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 | |
| Nitriding steels | < 1000 N/mm² | E | 55 | 65 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 |
| 1000-1200 N/mm² | E | 50 | 60 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 | |
| Tool steels | < 850 N/mm² | E | 55 | 65 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 |
| 850-1100 N/mm² | E | 50 | 60 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 | |
| 1100-1400 N/mm² | E | 30 | 40 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 | |
| High-speed steels | 850-1200 N/mm² | E | 30 | 40 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 |
| Wear-resistant constructional steel | 1350 N/mm² | E | 20 | 35 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 |
| Spring steels | < 1200 N/mm² | E | 20 | 35 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 |
| Stainless steels, sulphurated | < 700 N/mm² | E | 30 | 40 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| Stainless steels, austenitic | < 700 N/mm² | E | 30 | 40 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| < 850 N/mm² | E | 25 | 35 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 | |
| Stainless steels, martensitic | < 1100 N/mm² | E | 25 | 35 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| Special alloys | < 1200 N/mm² | E | 15 | 25 | 0,080 | 0,110 | 0,140 | 0,180 | 0,225 |
| Cast iron | < 180 HB | T/E | 70 | 100 | 0,090 | 0,130 | 0,160 | 0,210 | 0,263 |
| > 180 HB | T/E | 70 | 100 | 0,090 | 0,130 | 0,160 | 0,210 | 0,263 | |
| Nodular graphite, malleable iron | > 180 HB | E | 65 | 75 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 |
| > 260 HB | E | 65 | 75 | 0,090 | 0,120 | 0,150 | 0,200 | 0,250 | |
| Aluminium, aluminium alloys | < 530 N/mm² | E | 150 | 220 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Aluminium, cast aluminium alloys < 10 % Si | < 600 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Aluminium, cast aluminium alloys > 10 % Si | < 600 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Magnesium, magnesium alloys | < 280 N/mm² | E | 150 | 220 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Copper, low-alloy | < 350 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Brass, short-chipping | < 600 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Brass, long-chipping | < 600 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| Bronze, short-chipping | < 600 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 |
| 650-850 N/mm² | E | 100 | 180 | 0,100 | 0,140 | 0,170 | 0,230 | 0,288 | |
| Bronze, long-chipping | < 850 N/mm² | E | 90 | 140 | 0,090 | 0,130 | 0,160 | 0,210 | 0,263 |
| 850-1200 N/mm² | E | 90 | 140 | 0,090 | 0,130 | 0,160 | 0,210 | 0,263 | |
| Graphite | T | 70 | 100 | 0,090 | 0,130 | 0,160 | 0,210 | 0,263 | |
| 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. | |