1/4″ Shank Spiral CNC/Router Bits
Our largest selection of spiral bits is in the 1/4″ shank size and can be used on CNC machines, hand routers and router tables. Available in tip diameters ranging from 1/16″ to 1/4″, our spiral bits come in a multitude of different cuts and flute or cutting lengths. Most are*AstraHP Coated* (unless noted), all ready to produce the cleanest cuts on your Onefinity, Shapeoko, X-carve, Shaper Origin, or your favorite hand router as well.
Compression Router Bit | Spiral Compression Bits
*AstraHP Coated* Bits&Bits 425-CM250 – 1/4″ Spiral Compression Bit
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-CM250CB – 1/4″ Spiral Compression Chip Breaker
Compression Router Bit | Spiral Compression Bits
*AstraHP Coated* Bits&Bits 425-CM250SF – 1/4″ Short Flute Spiral Compression Bit
1/4 Inch End Mills
*AstraHP Coated* Bits&Bits 425-UP250 – 1/4″ ‘O’ Flute Spiral Bit for Plastic and Aluminum
1/4" Shank Spiral Bits
*Astra Coated* Bits&Bits 425-SCN250 – 1/4″ Cove Nose Up-Cut Spiral Bit
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-SRB250 – 1/4″ Up-Cut Ball Nose Spiral Bit
1/4" Shank Spiral Bits
Bits&Bits 3/8″ Round Nose Bit, 1/4″ Shank – 425-SRB375 *AstraHP Coated*
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-SRB500 – 1/2″ Round Nose CNC/Router Bit, 1/4″ Shank, 1″ Cut Length
1/4" Shank Spiral Bits
*Astra Coated* Bits&Bits SRF43-250AM – 1/4″ Aluminum Series Long Reach 3 Flute End Mill – 1/4″ Shank
1/4" Shank Spiral Bits
*Astra Coated* Bits&Bits SRF43-250AM-3/8 | 1/4″ Aluminum Series 3 Flute End Mill – 1/4″ Shank
1/4" Shank Spiral Bits
*Astra Coated* Bits&Bits SRF43-250GP – 1/4″ General Purpose 3 Flute End Mill
1/4" Shank Spiral Bits
*AstraHP Coated* Whiteside UD2100 1/4″ Single Flute Compression Spiral Bit
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 440-SRF250 – 1/4″ Extra Long CNC Bit featuring 2″ Cut Length
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-SRF375 – 3/8″ Spiral Up Cut CNC Router Bit – 1/4″ Shank
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-DNC375 – 3/8″ Spiral Down Cut CNC Router Bit – 1/4″ Shank
1/4" Shank Spiral Bits
Bits&Bits 3/8″ Bowl & Tray Bit, 1/4″ Shank, 1″LOC – 425-BT375 *AstraHP Coated*
1/4" Shank Spiral Bits
Bits&Bits 1/2″ Bowl & Tray Bit, 1/4″ Shank, 1″LOC – 425-BT510 *AstraHP Coated*
1/4" Shank Spiral Bits
*Astra Coated* Bits&Bits SRB4-187UP – 3/16 Ball Nose Up-Cut Spiral Bit – 1/4″ Shank
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-SRF125 – 1/8″ Up-Cut Spiral CNC Bit – 1/4″ Shank
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-SRF125LR – 1/8″ Long Reach Up-Cut Spiral Bit – 1/4″ Shank
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-DNC125 – 1/8″ Down-Cut Spiral 5/8″ LOC x 1/4″ Shank
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-DNC125LR – 1/8″ Long Reach Down Cut Spiral Router Bit – 1/4″ Shank
Compression Router Bit | Spiral Compression Bits
*AstraHP Coated* Bits&Bits 425-CM125 – 1/8″ Spiral Compression Bit – 1/4″ Shank
Compression Router Bit | Spiral Compression Bits
*AstraHP Coated* Bits&Bits 425-CM125LR 1/8″ Long Reach Spiral Compression Bit
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-ST125C – 1/8″ Low Helix Up-Cut Spiral Bit – 1/4″ Shank
1/4" Shank Spiral Bits
*AstraHP Coated* Bits&Bits 425-UP125 – 1/8″ ‘O’ Flute Up-Cut Spiral Bit – 1/4″ Shank