Replacement Model: 23-66-2635 switch. This switch is compatible with Milwaukee 23-66-0098, 23-66-2635, and 23-66-5027 on/off switches; Milwaukee 2730-20/2730-21 cordless M18 fuel circular saws; Milwaukee 2731-21/2731-22 cordless M18 fuel 7-1/4 inch circular saws; Milwaukee 2782-20 metal saws; and Milwaukee 2631-20/2730-20 circular saws. Problems Solved: Our circular saw switches can solve problems such as poor contact in chainsaw switches, intermittent power outages in chainsaws, and damage to original switches. Replacing your chainsaw with a new one will prevent reduced work efficiency and extended working hours caused by power outages, saving you time and effort. Durable Material: Our circular saw switches are made of high-quality plastic material, ensuring normal operation even under harsh weather conditions. Our switches offer excellent stability and superior durability, meeting your needs for frequent use. They are sturdy, wear-resistant, resistant to aging and deformation, have a long service life, and are highly efficient. Quick Installation: Our switches are easy to install and require no complicated operations. A new switch can replace an old or damaged one in just 5 minutes. Simple and convenient, saving time and effort. Color: Black. Material: Plastic. Package Contents: 1 set * Circular Saw Switch. Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product. The allowed measurement error is +/- 1-3 cm.