4 piece capacities includes 1/16-1/4 (M2-M6), 1/16-3/8 (M2-M10), 5/32-1/2 (M6-M12) & 5/32-3/4 (M6-M22) Heavy duty tap wrenches. Rugged drop forged construction. Hardened jaws for increased longevity. 4 piece capacities includes 1/16-1/4 (M2-M6), 1... Heavy duty tap wrenches. HHIP Self-aligning Tap Reamer Holder 0-1/2 Inch Collets HHIP 3900-0293 Self-Aligning Tap And Reamer Holder - 0-1/2 Inch Capacity With Collets Self-aligning Tap Holder 1/16 To 3/4 Inch Capacity WILLBOND 4 Pcs Adjustable Tap Wrench Handle Tool Ratcheting For Tap Heavy Duty Tap Handles Hardened jaws for increased longevity Adjustable Tap Handle Reamer Wrench No2 M4-M12 – Twin Eagle Imports 4 piece capacities includes 1/16-1/4 (M2-M6), 1/16-3/8 (M2-M10), 5/32-1/2 (M6-M12) & 5/32-3/4 (M6-M22). Hardened jaws for increased longevity.