Countersink bit HSS 90°
Countersink bit
CNTSNK-CONI-MA-HSS-BIT-3BLDE-90DGR-D6,3
ZEBRA
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Standardised 1/4 inch hexagon shank
No slipping in the drill chuck, suitable for bit holders
Rapid change between countersinking and screwing possible
Product packaging made from 100 % PCR (recycled plastic from household waste) and 100 % recyclable
Increased service life and cutting performance by using drilling and cutting oil or cutting paste.
Datasheets(X)
Use in electric screwdrivers, drills and hand deburrers for processing conventional steels, non-ferrous metals and plastics
 | |
Material to be processed | Non-ferrous metal, Steel |
Spot-facer diameter (d1) | 6.3 mm |
Length (l1) | 31 mm |
Number of cutting edges (Z) | 3 PCS |
Cutting material | HSS |
Countersink angle | 90 Degree |
Surface | Plain |
Shank style | Hexagon |
Service life (points system) | 2 of 4 points |
Countersinking speed (point system) | 2 of 4 points |
Countersinking quality (point system) | 2 of 4 points |
Versatility (points system) | 2 of 4 points |
Countersinking behaviour (point system) | 2 of 4 points |
Material of sub-group | General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, White cast iron, Aluminium, Aluminium alloys, Aluminium wrought alloys, Aluminium casting alloys (<10% silicon), Aluminium casting alloys (>10% silicon), Magnesium alloys, Copper, low-alloyed, Brass, short-chipping, Brass, long-chipping, Bronze, short-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic, Plastics, aramide-fibre reinforced, Plastics, glass/carbon-fibre-reinforced |
| Standard speed values for conical countersinks with 1/4 inch bit mount | ||||
| Material | Non-ferrous metals | Structural steel, sheet steel St 14 - St 37 | Plastics, duroplastics, thermoplastics | Aluminium alloys |
| Cutting speed m/min | 15 | 15 - 20 | 25 | 20 |
| dia. mm | n = rpm | n = rpm | n = rpm | n = rpm |
| 6,3 | 500 - 800 | 800-1200 | 800-1200 | 500 - 800 |
| 8,3 | 400 - 600 | 600-1000 | 600-1000 | 400 - 600 |
| 10,4 | 300 - 500 | 500 - 700 | 500 - 700 | 300 - 500 |
| 12,4 | 250 - 400 | 400 - 600 | 400 - 600 | 250 - 400 |
| 16,5 | 200 - 300 | 300 - 500 | 300 - 500 | 200 - 300 |
| 20,5 | 150 - 250 | 200 - 400 | 200 - 400 | 150 - 250 |
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