SMART-BIT® from Starborn Industries is a pre-drilling and countersink tool with a countersink portion proportionate to the head of each corresponding screw size. It matches the head diameter, head angle and countersink depth of the hole and fit. A stop collar that spins free of the bit and a rubber O-ring ensure the tool won’t leave marks. It drills a 1-1⁄8″-deep hole and is available in five sizes. The SMART-BIT is packaged with two replacement drill bits and a hex Allen wrench. Pricing varies by screw size, starting at $14.99 for a #7 trim-head SMART-BIT.