var useConeFriction: bool;
bool useConeFriction;
useConeFriction as bool

Force cone friction to be used for this rigidbody.

This insures that all contacts involving the actor will use cone friction. This will however have a negative impact on performance. By default this is off and a much faster and almost as good approximation called pyramid friction method is used. In most cases it is recommended to leave this value off.
	rigidbody.useConeFriction = true;
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        rigidbody.useConeFriction = true;
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		rigidbody.useConeFriction = true