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1/2" Ball Nose CNC Router Bit, Cutting Board Juice Groove Bit 1/4" Shank

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

$32.97

Availability: In Stock

Quantity:

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 Stiffy? 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.

BN-12

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

For Vectric users, get the latest CNC router bit tool database by clicking here

For CNC’s with routers, refer to this PDF download feeds & speeds table

Get feeds and speeds in your shop by scanning this QR code with the IDC Woodcraft App

Customer Reviews

Based on 2 reviews
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LINDA WARING
Really Good Bit

Does what it's designed to do. This is a good bit, made well and I love that it's all ready to go in the downloadable database.

D
Dawayne Tate
Exactly what I needed & fast!

This bit was missing from my arsenal of CNC bits which made certain orders I had hard to fulfill. This bit helped to streamline my workflow tremendously! Garrett also did a great job with shipping turnaround; I got the bit before I realized it! I will continue dealing with IDC Woodcraft for my bit needs!!!!