Gold CM alloy, non-cutting tip and sharp cutting edge assure its excellent resistance and flexibility at the same time. Specifications : - Speed: 500 rpm. - With depth markings visible on x-rays. - Silicone bumper. - Completely safe mechanical sliding of the channel. - Efficient in particle removal. - Maximum safety and efficiency. - Size: #30. - Length: 25 mm. - Taper: 4%.