Analysis of Drilling of Coir Fiber-Reinforced Polyester Composites Using Multifaceted Drill Bit

Table 1

The coir fiber’s physical properties.

Physical property	Coir fiber	Units
Density	0.93	gm/cc
Young’s modulus	166	Mpa
Tensile strength	15.75	Mpa
Shear strength	13.7	Mpa
Flexural strength	34.63	Mpa
Impact strength	283	Kj/m^2