It's a good tool for DIY use with pocket hole joinery.Features:The drill bit has 2 steps of 4.5mm and 6.5mm.Good abrasion resistance， durable for use.Sharp knife head， smooth without burr.Adjustable black chamfer upward or downward.For use with pocket hole joinery.How to use:1. Adjust the height of the drill bit;2. Clip board which you want to drill;3. Put the drill into the hole in the wood;4. Drill up 5mm (remember not against the wood to drill);5. Start the drill reaches a certain speed above 500 rpm， 1500 rpm is the best;6. Advanced to slow down， such as front-end fine drill in half or full， then can speed up.Specifications:Material: HSSOverall Length: 101mmLength of Drill Head: 6mmDiameter of Drill End: 6mmDiameter of Chamfer: 13.5mmPackage Size: 9 * 6.5 * 0.6cm / 3.54 * 2.56 * 0.24inPackage Weight: 28g / 0.99ozPackage List:1 * Twist Step Drill"
