Lapping and PolishingHelilap Expander No. 8
Part number
303211

Adjustable internal laps on tapered arbors for accurate sizing, straightening and rounding of bores. Expanders set the lap diameter and pullers remove laps from the arbor; laps can be machined down to the next size.
Lap expanderType
8Expander No.
No. 8For arbor
Specifications
| Type | Lap expander |
|---|---|
| Expander No. | 8 |
| For arbor | No. 8 |
| For laps | 5/8 - 47/64 in |
Standards
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