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7 Degree 4 flute tapered spiral router bit or commonly referred to as ball conical spirals. Whiteside SC66 conical ball nose spiral router bit for 2D 3D CNC carving and modelling. Tapered ball nose spiral CNC bits for quality surface finish.


shank 6.35 mm (1/4")
R (mm) 1.59
c/l(mm) 22.23
o/a(mm) 63.5
features 7.2° incl. angle
material solid carbide
flute 4 tapered
Item Price Ex. VAT £ 37.15
Item Price Inc. VAT £ 44.58
Stock Level 8


Whiteside Machine Company; North Carolina, USA

Maximum R.P.M. Guidance:

Cutting Diameter (D) Max. R.P.M.
up to 19mm 24,000
19 to 38mm 18,000
38 to 57mm 16,000
57 to 89mm 12,000


  • The dust generated from the grinding of tungsten carbide may contain potentially hazardous ingredients. Please ensure you wear the appropriate personal protective equipment. Inhalation, ingestion, eye contact and skin contact should be avoided.