Preci Tech Hard Steel Mandrels

Diameter mm

Ins

Mandrel

Adaptor

Stone Types

SHORT SERIES

MANDREL LENGTH A = 152 mm (5.98") STONE LENGTH B =1x 82.5 mm (3.25")

25.4 - 28.57	1.000 - 1.125	PT1000/6
28.57 - 31.75	1.125 - 1.250	PT1125/6
31.75 - 34.93	1.150 - 1.375	PT1250/6
34.93 - 38.10	1.375 - 1.500	PT1375/6
38.10 - 41.28	1.500 - 1.625	PT1500/6
41.28 - 44.45	1.625 - 1.750	PT1625/6
44.45 - 47.63	1.750 - 1.875	PT1750/6
47.63 - 50.80	1.875 - 2.000	PT1875/6
50.80 - 53.98	2.000 - 2.125	PT2000/6
53.98 - 57.15	2.125 - 2.250	PT2125/6
57.15 - 60.33	2.250 - 2.375	PT2250/6
60.33 - 63.50	2.375 - 2.500	PT2375/6
63.50 - 66.68	2.500 - 2.625	PT2500/6

Blind Hole Hard Steel Mandrels
Mandrel Length A= 180 mm Stone Length B=82.5 mm (3)

To convert to mandrel for blind hole use.
When honing any blind hole the stone must be flush with the end of the mandrel.

The range of mandrels listed above can be converted for blind hole use simply by changing the expansion wedge and stoneholder type and front and rear stops.
 
Use F2 type stoneholders mounted with the appropriate stone grade. Move the front stop from the first hole at the front the mandrel to the second hole in the mandrel hole.
 
Move the rear stop to the last hole in the mandrel body.

Preci-Tech Hard Steel Mandrels | Preci-Tech Hard/Soft Steel Mandrels
Preci-Tech Permanent Type Mandrels