Flying Arrow Archery TOXIC Broadhead 100 GR. T3100 Grain:100 right and left helical clamps MSRE STO WPII right and left helical clamps are ground with a radius to achieve a true helical fletch• Hollow recess allows for thumb and fingertip control preventing slippage in the hand• Graduated scale at the rear base of the clamp allows for consistent spacing of feathers and vanes accurately from the nock• Knife edge on base of the clamp eliminates build up of surplus glueNote: The steel plate is cased into the straight clamp rugged PocketRocket stove With the low profile and unmatched cutting surface even on those hard angling shots