Original price was: $204.90.$159.80Current price is: $159.80.
USA made 3-piece HSS Hole Expansion Step Reamer Set designed for controlled enlargement and deburring of existing holes in metal. Covers 5/16″ through 1-1/16″ with five enlargement steps per reamer.
Features Gold Oxide treated High Speed Steel, 90° notch points, and 3/8″ three-flat shanks for a secure grip in the drill chuck.
3-Piece Set | HSS | Gold Oxide | USA Made
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New from DrillBitWarehouse
Built specifically for enlarging existing holes, this professional 3-Piece Hole Expansion Step Reamer Set provides a fast, controlled way to open up and deburr holes in steel and other metals.
Unlike a standard drill bit, the stepped cutting design progressively enlarges an existing hole. Each reamer features five enlargement steps, giving the complete set a working range from 5/16″ through 1-1/16″.
The 90° notch point is designed to engage existing holes, while the 3/8″ shank with three flats provides a secure grip in the drill chuck and helps prevent slipping under load.
Manufactured from High Speed Steel (HSS) and treated with a Gold Oxide finish, these reamers are built for demanding metalworking, fabrication, maintenance and repair applications. The Gold Oxide treatment improves lubricity and helps reduce friction during cutting.
Designed for use in material up to 1/2″ thick.
| Reamer | Hole Expansion Range | Steps |
|---|---|---|
| Small | 5/16″ – 9/16″ | 5 |
| Medium | 9/16″ – 13/16″ | 5 |
| Large | 13/16″ – 1-1/16″ | 5 |
Manufacturer Part #: 83750
Series: Type 78-GR
Product Type: Hole Expansion Step Reamer Set
Pieces: 3
Material: High Speed Steel (HSS)
Finish: Gold Oxide
Overall Range: 5/16″ – 1-1/16″
Steps Per Reamer: 5
Shank Diameter: 3/8″
Shank Style: Three-Flat
Step Thickness: 1/2″
Point Style: 90° Notch Point
Maximum Material Thickness: 1/2″
MADE IN THE USA
| Weight | 1 lbs |
|---|
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