Shop › PERIODONTAL KNIVES SANDERS 4/5 - 636/5.HL8 PERIODONTAL KNIVES SANDERS 4/5 - 636/5.HL8 $44.00 Get notified by email when this product is in stock. Add To Cart Added! Sanders periodontal knife for gingivectomy procedures. Manually sharpened by Medesy craftsmen. DALILA HL8 handle. Product SKU: 636/5.HL8 Sanders periodontal knife for gingivectomy procedures. Manually sharpened by Medesy craftsmen. DALILA HL8 handle. Product SKU: 636/5.HL8