Take your guard stance close to the bag with your hands wrapped and gloves on.

Bend your knees to drop your level slightly instead of bending at the waist, so you can aim at the middle of the bag.

Rotate your hips and torso into the punch and throw a tight hook with your elbow bent, landing with your first two knuckles at body height.

Rise back up through your legs as you return to your guard, keeping your other hand protecting your chin.

Repeat on both sides, alternating lead and rear hooks to train both.