The POWERTEC Straight Edge Clamp Saw Guide 24 inches: This clamp guides are adjustable to work over the full range up to 24 in. , and it has two double cut T-tracks on each guide that accepts 1/4 in. -20 T-bolts, 5/16 in. -18 T-bolts and 1/4 in. -20 Hex bolts. You can use the guide with a wide range of tools and you can be sure that it will meet your needs, including rotary saws, jig saws, circular table saws, routers and jointers.【Easy to Use】1. Place the straight edge clamp on the material. 2. Align and position the straight edge clamp to your reference marks. 3. Place the fixed clamp with locking lever against the edge of the material closest to you. 4. With the locking lever released and the fixed clamp in position, draw the adjustable end clamp in and position firmly against the opposite end of the material. 5. Once set and aligned, lock the lever. The POWERTEC Circular Saw Plate: Designed with versatility at its core, this circular saw guide securely mounts a wide variety of left and right-handed circular saws with base dimensions up to 12-1/2 in. L x 6-1/2 in. W. This adaptable saw plate features an adjustable underside fence that is compatible with a multitude of guide rails, including POWERTEC 71153 / 71387 / 71870 / 71990 & Makita, Festool-style tracks. It seamlessly integrates with straight edge clamps from POWERTEC 71705~71708, Bora Straight Edge Clamps, ProGrip clamps, & other brands within the 2 in. to 2-1/2 in. width & under 5/8 in. height range. Material: Aluminum.