“Little Stiffy” – The 120-degree v-bit for CNC routers is the bit to use when your v-carved letters are wider than 3/8″ wide. The 120-degree bit is for the sign maker who makes larger projects with bigger words.
Why is it called the Little Stiffy? Overall, the bit length is a bit shorter than most. This little design modification gives you a 50% improvement in your surface finish. When 120-degree v bits are longer, they tend to cause ‘chatter’ (a rough surface finish caused by tool vibration and deflection)
This bit has a carbide blade brazed to a 4140 body.
- Shank: 1/4″ (6.35mm)
- Cut diameter: 3/4″ (19mm)
- Length: 1.5″ (38mm)
- Flutes: 2
- Flute length: 0.375″
- Material: 100% tungsten-carbide
- Feed: 45 inches per minute (16mm/sec)
- Speed (rpm): 1000-14000
- Max pass depth: 0.125″ / 3.175mm
- Stepover: 20%
- For CNCs with routers, use full speed