Helical Slot Expansion Laps, Lap Arbors, Lap Expanders, Lap Puller .0625 to 1-1/4 ID 2737-

Part Number: 2737-
Helical Slot Expansion Laps, Lap Arbors, Lap Expanders, Lap Puller .0625 to 1-1/4 ID 2737-
Helical Slot Expansion Laps, Lap Arbors, Lap Expanders, Lap Puller .0625 to 1-1/4 ID 2737-
Your Price: $29.99USD
Availability: In Stock to 3-5 Days
Helical Slot Expansion Laps, Lap Arbors, Lap Expanders, Lap Puller .0625 to 1-1/4 ID 2737-

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Internal Laps, Lapping Arbors, Lap Expanders, Lap Puller .0625 to 1-1/4


























































































Internal Laps are made from a special fine grain lapping cast iron.  
Cast iron is the ultimate lapping material, it's fine porous structure accelerates the lapping process.  
Each Internal Laps bore is precision machined  then the outside diameter is ground on a master arbor to .0001" straightness.  
The lap becomes straight to under 5 millionths of an inch with use.

arbors are made from hardened tools steel and precision ground between centers.  The arbors are manufactured to very close tolerances so there is no change in the straightness of the lap when it is expanded.  The Lap is mounted on the Arbor by inserting the Arbor through the hole in the Lap.  The Lap and Arbor have locking tapers to provide rotation and expansion.  Expansion is achieved by moving the Lap laterally on the arbor.  When moved the slot allows the Lap to expand.Expanders are made of hardened tool steel.  The Expander is used by butting the end with the hole against the Lap and tapping with a hammer.



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