B-splines play the role of basis functions for the spline function space, hence the name. Corporate 10-bolt axles were upgraded to 30 spline axle shafts from previous 28 spline. A rotary hammer uses SDS or Spline Shank bits. These disadvantages can be reduced by using spline interpolation or restricting attention to Chebyshev polynomials. The problem can be avoided by using spline curves which are piecewise polynomials. For instance, the natural cubic spline is piecewise cubic and twice continuously differentiable. This problem is commonly resolved by the use of spline interpolation. Teeth are positioned radially around the outside of the flex spline. It is also called a linear spline. A nonlinear transformation may also be parametrized as a thin plate spline. The flex spline is shaped like a shallow cup. The third component in SIPs is the spline or connector piece between SIP panels. Splined canvas can be restretched by adjusting the spline. A common spline is the natural cubic spline of degree 3 with continuity "C". One is Truvativ's Power Spline interface.