Japan Hobby Tool Herical Grease Made in Japan Specially made grease for the use of a lubricant of the helicoidal parts of the camera lens and Dovetail Groove of the instrument. Introduced by the major Japanese optical instrument manufacturer. Both cold proof and heat resistant. No adverse effect on the synthetic resin. Helicoid Grease #10 : Consistency(JIS 25) : 400 / Dropping Point(JIS): 202  / Torque(25) : 12700 Nm / 15ml The softest Type (#10) ~ Super Hard Type (#3000) also available. Please see our other items.