Comparison : Item # HTM 175, 1” x 1-3/4” HI Torque H.D.
Item # HTM 200, 1-1/4” x 2-1/8” HI Torque H.D.
Item # HTM 250, 1-3/4” X 2-5/8” HI Torque H.D.
Item # HTM 300, 2-1/4” X 3-1/8” HI Torque H.D.
Item # HTM 350, 2-3/4” X 3-5/8” HI Torque H.D.