The Big Horn 70146 Strike & Latch Templates with Center Locators are essential tools for achieving professional-quality door hardware installations. This comprehensive kit includes for templates: 70131 1” x 2-1/4” A Latch Template, 70133 1-1/8” x 2-1/4” B Latch Template, 70132 1” x 2-1/4” A Strike Template, and 70134 1-1/8” x 2-3/4” B Strike Template. These templates are designed to create precise mortises for latch and strike plates, ensuring a smooth and accurate fit on doors and jambs. With three different finish sizes—1” x 2-1/4”, 1-1/8” x 2-1/4”, and 1-1/8” x 2-3/4”—these templates are perfect for a variety of residential applications, including latch, strike, and deadbolt installations. The kit includes three center locators, ensuring perfect alignment over pre-bored holes in doors or jambs. Simply insert the locator into the hole, place the template over it, and secure the template with fine steel nails for a stable and reliable attachment. Once secured, remove the locator and route the mortise using a 5/8” router template guide and a 1/2” mortising bit. Some templates feature adjustable stops, accommodating door jambs of 1-3/8” or 1-3/4” thickness, offering versatility for various installation needs.