1-7/16" HSS Spiral Flute Hand Expansion Reamer Quantity:1 The bits are made from

The bits are made from S2 steel that's heat-treated to a higher hardness (58–62 HRC) to help maintain their geometry under stress

Part Number DWRR57

Tap Size 9/16"-12

Part Number: 75C750HCS8Y/USA

Part Number: 50C250ASBSS

1-7/16" HSS Spiral Flute Hand Expansion Reamer Quantity:1 The bits are made fromProduct Description Hand Expansion Reamers are used to enlarge holes in order to get proper fit. Adjusting screw is tightened to get the proper size. Brand Drill America Part Number DWRRHDES1 7 16 Size 1 7 16" Material High Speed Steel Finish Uncoated (Bright) Style Expansion Reamer Shank Type Round Flute Length 4 3 4" Length 10 7 8" Flute Type Straight