This task is moderately difficult but if you do like to rehair your violin bow please follow the steps below. Best of all you don’t need special tools but you do need a comb and a gas burner or alcohol lamp. There are three major steps to accomplish this task.
Prepare the Area and Hair
- Purchase the horse hair. If the hair is too white, it may be too brittle because it is over bleached. Cream or golden color is good
- Cut the old hair off the bow 1 inch from the frog. Remove the ring by placing a small piece of leather on it and grabbing it with pliers and jiggling it off
- Insert a knife between frog tongue and the wedge. Gently remove the wedge from the tongue using needle nose pliers. Discard the ring wedge and purchase a new one. Take off the slide by pushing it with the thumb and tapping with a hammer. Pry out the wedge, making certain you don’t touch the slide channel
- Clean the old glue off the frog tongue and the cavity. Pry out the tip wedge without breaking the top lining. Clean and buff the ring, back frog lining, and end button
- Wrap the light end of the hair with a strong rubber band, leaving the rope on and pushing it close to the rubber band. Cut a 7-inch length after you have removed one of the ropes. Super glue the top end together
- Measure the amount of hair you’ll need with the feeler gauge. Make sure that the hair is flush with the gauge as possible and cut close to the tie
- Hold the hair in the left hand with the thumb at a right angle. Put the wire next to the thumb, leaving 3/4 inch out. Wind about 6 inches of wire. Use less for a smaller cavity. Leave 3/4 inch out at the end. Clip the wire and twist together with the first end using a pliers. .
Cutting the Hair to the appropriate Length
- Place the frog so that the front faces the tip of the stick. Put both into the clamp, making certain that the frog cavity is directly over the clamp bolt. Tighten the bolt snugly.
- Measure the length of the cavity and subtract 1 1/2mm. Cut the hair that length. Put a drop of super glue on it and, holding the tied end upside down, spray it with an accelerator. Fit the hair in the cavity by placing the tie on the right side and pushing the hair down with a push tool. Make certain the tie is perfectly flat.
- Add powdered rosin on top of the tie. Place the new frog wedge on the cavity. Stab the wedge by hitting the middle with the blunt side of a knife and positioning it into place. Remove the knife and push down with a push tool
- Hold the slide with the index finger and thumb and push it into place while pulling and twisting the hair
- Use the bottom of an opened paper clip to string the hair through the ring. Put a drop of glue between the hair and the frog tongue and insert the ring wedge. Even the hair and tap the wedge into place by putting leather on top and using a tack hammer
- Cut the wedge in two places, no deeper than 1 mm from the hair, using a razor saw. Bend the wedge back and forth until it breaks at the cuts
- Put the frog on the bow stick and insert the end screw. Place the stick into a clam that is held onto a desktop with C-clamps making certain the frog does not touch. Put the bow in the clamp and extend the hair 1 inch past the tip and make a cut with the scissors
Attach the hair to the bow
- Take the frog off the stick. Submerge the hair in water. Don’t get the ring wedge wet. Lift it straight out, pressing the water out of the hair as you remove and wiping once with a paper towel. Reattach the frog to the stick and the stick back into the clamp. Comb the hair
- Determine the exact length of the hair and adjust the length for the season. If it’s summer subtract 1mm length. Wet the hair again and comb
- Wrap the end with wire as you did in Step 7 of Section 1. Crimp the wire flat and twist the end tight. Cut the wire and bend over the top of the tie. Crimp tight. Measure the cavity and subtract 1 mm. Cut the hair that length using the wire end toward the middle as the starting point. Put a drop of glue on and spray with accelerator
If you are interested in other violin parts and accessories, please click here

