1/2″ Ball Nose Router Bit, Cutting Board Juice Groove Bit 1/4″ Shank for CNC Routers

$32.97

This Big Stiffy series 1/4″ radius ball nose bit (1/2″ inch diameter) for CNC routers is excellent for juice grooves on cutting boards. Also great for radius accent work when carving signs on your CNC router. Cuts fast and clean. With a 1/4″ shank, it is suited well to remove large amounts of material in a single pass. The ‘super-shear’ blade design is designed to leave exceptionally clean cuts at higher feeds rates.

  • Shank: 1/4″ / Length: 1.75″ / Flutes: 2 / Flute length: 0.5″ / Cut Dia. 0.5″
  • Cut radius 1/2″ / Carbide tipped

In stock

Description

This Big Stiffy series 1/2″ ball nose router bit (1/4″ radius ball cut) for CNC routers is excellent for juice grooves on cutting boards. Also great for radius accent work when carving signs on your CNC router.

Sometimes called a bull nose bit, wth a 1/4″ shank, it is suited to remove large amounts of material in a single pass. The ‘super-shear’ blade design is designed to leave exceptionally clean cuts at higher feed rates.

The extended flute length of this 1/2 ball nose router bit allows you to get much deeper without witness marks.

Why is the 1/2 ball nose router bit called the Big┬áStiffy? 2 reasons. The first is, that this bit has extra mass, which absorbs vibration you’ll find in other large CNC bits. The second reason is, that the overall bit length is shorter than the standard bit.

This little design modification keeps your bit stiffer during cuts, significantly reducing the chance of chatter, which gives you a 50% improvement in your surface finish.

This bit has a carbide blade brazed to a 4140 body.

Specs

  • Shank: 1/4″ (6.35mm)
  • Radius: 0.25″ (6.35mm)
  • Cut diameter: 0.5″ (12.7mm)
  • Length: 1.75″ (44mm)
  • Flutes: 2
  • Flute length: 0.5″ (13mm)
  • Material: 100% tungsten-carbide tipped

Settings

  • Feed: 60 inches per minute (25mm/sec)
  • Speed (rpm): 10000-14000
  • Max pass depth: 0.11″ / 3mm
  • Stepover: 40%
  • For CNC routers, see the speeds & feeds table

FREE Feeds & Speeds table PDF. Download by clicking here

 

Additional information

Weight .5 oz
Dimensions 9 × 7 × .5 in

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