STOCKED STEP REAMERS
CUTTING OR NON-CUTTING PILOT
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| LOW COST & PROMPT DELIVERY |
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HANNIBAL RESPONDS TO MARKET DEMAND FOR MATERIAL SPECIFIC STEP AND PILOT REAMERS
- 9 types now available in straight, right spiral, and left spiral flute designs
- Reduce tooling cost and costly setup time by reaming multi-diameter holes in one operation
- Eliminate problems caused by heavy stock removal - use a step reamer to remove excess material with minor diameter, while setting up the finish diameter to remove adequate stock to obtain size and best finish
- When alignment is critical, rely on a piloted reamer; the pilot is non-cutting and acts as a guide to ensure alignment of multi-diameter holes
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STEP REAMER MODIFICATIONS
- Modified tool diameter
- Metric tool diameter
- Closer tool diameter tolerance
- End chamfer other than 45ยบ
- End cutting or corner radius
- Increased/decreased circular margin
- Increased/decreased tool diameter back taper
- Shortened shank or reduced shank diameter
- Flat(s) or tang on shank
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Coatings available:
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TITANIUM NITRIDE - TiN
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TITANIUM CARBONITRIDE - TiCN
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STEP REAMER SPECIFICATIONS
- Geometry and carbide grade appropriate for material being machined
- Carbide tips brazed to tough hardened alloy steel body
- Polished flutes for easy chip flow
- Reamer shanks are ground to next smallest shank diameter listed in NAS 897 if tool diameter is within .005" of shank diameter
STEP REAMER TOLERANCES
- Tool diameter tolerance:
Major & minor cutting diameter: plus .0003", minus .0000"
If non-cutting pilot: plus.000", minus.001"
- Shank diameter tolerance:
thru 23/32" tool diameter: plus .0000", minus .0010"
over 23/32" tool diameter: plus .0000", minus .0015"
- Step or pilot length tolerance: plus .005", minus .005"
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