HMA-1/4A

Helix Mortise Arbor

1/4"SH, 5/16"-24THD

These arbors are designed to hold the replaceable Helix Mortise heads.

Part #	Shank Dia.	Thread	Overall Length
HMA-1/4	1/4"	1/4"-28	1-3/4"
HMA-1/2	1/2"	1/4"-28	1-3/4"
* HMA-1/4A	1/4"	5/16"-24	1-3/4"
* HMA-1/2A	1/2"	5/16"-24	1-3/4"

* Fits #13-1250A only. Arbors fit Helix Mortise bits.

HMA-1/4

HMA-1/2

HMA-1/2A

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