8 Ps/set Precision Expanding Mandrel Set, 6978-0918
Not like traditional mandrels with fixed sizes, expanding mandrels are flexible and adjustable. With the tapered shafts and the elastic sleeves, one mandrel with a sleeve can hold a range of sizes. Thus, you don’t need a great many of the mandrels with fixed dimensions. This precision and adjustable expanding mandrel set can support inside diameters ranging from 1/2″ to 2″. Accusize 6987-0918 Precision Expanding Mandrels are made of high-grade tool steel, which gives the toolset relatively much longer tool life.
The precision expanding mandrels are much more economically than traditional arbors.
Features:
- Made of high-grade tool steel.
- Precision ground and heat-treated for maximum concentricity and holding power.
- Center holes are ground and lapped.
- The automatic expansion feature can be utilized on any bore (standard or non-standard) within the range of the mandrel.
- Sizes up to 1″ capacity are furnished with 1 sleeve: larger sizes are furnished with 2 sleeves (1 large and 1 small).
- Arbors are tapered, sleeves are flexible and size is obtained by moving sleeves along the arbor.
- A range from 1/2″ thru 2″ by 0.0001″ can be covered by a total of 8 mandrels.
Packed in a fitted wooden box.
Size Range | Length of Arbor | Length of Sleeve | Sleeves Furnished |
(D) | (L) | (H) | |
1/2″ – 9/16″ | 5″ | 2-1/2″ | 1 |
9/16″ – 21/32″ | 6″ | 2-3/4″ | 1 |
21/32″ – 3/4″ | 7″ | 2-3/4″ | 1 |
3/4″ – 7/8″ | 7″ | 3-1/4″ | 1 |
7/8″ – 1″ | 7″ | 3-1/4″ | 1 |
1″- 1-1/4″ | 9″ | 4″ | 2 |
1-1/4″ – 1-1/2″ | 9″ | 4″ | 2 |
1-1/2″ – 2″ | 11-1/2″ | 5″ | 2 |