HUHAO 1PC HRC55 6mm Shank Ball Nose CNC Router Bits End Mill Specifications: -Material: Hard Carbide -Total length: 75mm = 2.95 inch -Shank diameter (SD): 6mm = 0.236 inch -Cutting Length = 30.5mm =1.2 inch -HRC55 Feature: This tapered end mill has a 0.25mm radius cutting tip and a 20mm cutting length.provide great performance and extended tool life. Tapered CNC end mills provide the extra length needed to carve 3D shapes out of solid wood, plastic, foam and other materials. The tapered design provides added strength to the bit while still maintaining a small radius at the bit's tip. This unique design provides clearance when routing 3D profiles and allows you to create complex carvings in all kinds of stock. The bits life span and durability are increased substantially avoiding unnecessary down time. Note: Stop immediately in the processing of anomalies when using the CNC Router Bit and find out the reason before processing; Pay attention to the condition of wear and tear of the cutting edge and timely repair the CNC Router Bit. Why Choose HUHAO Good quality and reliable brand. Within 90 days product quality is not completely satisfied, please CONTACT US, 100% refund. 24-hour feedback excellent customer service.