The Red Head Brass Commitment to Quality and Safety in Hydrant Wrenches Hydrant wrench heads are made from strong ductile iron: ASTM A536, Grade 65-45-12 Jaws are machined from tough manganese bronze: Alloy 865 ASTM B147-8A, (QQ-C-390 (C3) Hydrant wrench handles are chrome plated carbon steel: 1215 ASTM A575 (QQ-S-630) Style 105 | 105S Configuration & Features Wrench will accommodate pentagon heads to 1-7/8" and square heads to 1-1/2" Double spanner head is designed to fit 3/4" thru 6" rocker lug or pin lug fittings Jaw is replaceable Weight:Style 105 – 5 lbsStyle 105S – 4 lbs Length:Style 105 – 19-1/2"Style 105S – 11-1/2" Style 107 | 107S Configuration & Features Wrench will accommodate pentagon heads to 1-3/4" and square heads to 1-1/4" Single hook spanner head is designed to fit 3/4" thru 6" rocker lug or pin lug fittings Weight:Style 107 – 4 lbsStyle 107S – 3 lbs Length:Style 107 – 18-1/2".Style 107S – 10-1/2"