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AT-Series Lock Liners – Knurled Model

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AT-Series Lock Liners – Knurled

Drill Bushings

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AT-Series Lock Liners – Knurled Part # LL-4 Carr Lane Mfg.®

Precision knurled liner bushing for mounting air-feed drills in fiberglass or plastic tooling. AT-series knurled lock liners are designed especially for AT-series one-piece adaptor tips, and are not compatible with any other liners or air-feed accessories. Available in four sizes, to fit all AT-series adaptor tips.

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Material

MATERIAL	HEAT TREAT	FINISH	DFARS	RoHS
1144 Stressproof Steel	heat treated to achieve Rc 62-64 ID hardness	-	✔	✔

Click here for detailed material and finish specifications.

California residents click here for Prop 65 information.

Other materials are available by special order

AT-Series Lock Liners – Knurled

PART NO.	A ID NOMINAL	A ID ACTUAL	B OD	C	D	F DIA
LL-1	11/32	.3440 / .3443	9/16	1-3/8	7/8	11/16
LL-2	7/16	.4377 / .4380	11/16	1-3/8	7/8	13/16
LL-3	9/16	.5627 / .5630	13/16	1-3/8	7/8	15/16
LL-4	3/4	.7503 / .7506	1	1-3/8	7/8	1-1/8

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CARR LANE MANUFACTURING
4200 CARR LANE CT.
P.O. BOX 191970
ST. LOUIS, MO 63119
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