Countersink bit HSS 90°
Countersink bit
CNTSNK-CONI-MA-HSS-BIT-3BLDE-90DGR-D16,5
ZEBRA
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Standardised 1/4 inch hex shank
No slipping in the drill chuck, suitable for bit holders
Fast changes between countersinking/screwing
Sustainable product packaging made from 100 % PCR (recycled plastic from household waste), 100 % recyclable and Cradle to Cradle Certified® in Bronze
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
 | |
Spot-facer diameter (d1) | 16.5 mm |
Length (l1) | 40 mm |
| 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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