Jet Tools JDP-20VS manual Drill Speed Chart, Lubrication Location Type Frequency

Drill Speed Chart

Use the following-drill speed charts to determine the approximate drill speed for the size bit and type of material to be drilled. Speeds are listed in revolutions per minute.

Drill Diameter (in.)	1/16	3/32	1/8	5/32	3/16	7/32	1/4	9/32
Soft Wood	3000	3000	3000	3000	3000	3000	3000	2180
Hard Wood	3000	3000	3000	3000	3000	3000	3000	2180
Plastic/Rubber	3000	3000	3000	3000	3000	3000	3000	2180
Cast Iron	3000	2180	2180	2180	1450	1450	1280	1090
Soft Metals	3000	3000	3000	3000	3000	3000	3000	3000
Mild Steel	3000	3000	3000	2180	1450	1280	1280	1280
Hard Steel	2180	1820	1280	1090	650	650	590	540

-	5/16	11/32	3/8	13/32	7/16	15/32	1/2	9/16	5/8
Drill Diameter (in.)
Soft Wood	2180	2180	2180	2180	2180	2180	2180	1820	1820
Hard Wood	2180	2180	2180	2180	2180	2180	1820	1820	1820
Plastic/Rubber	2180	1450	1280	1280	1090	1090	1090	650	650
Cast Iron	650	650	650	650	650	650	590	540	410
Soft Metals	3000	3000	3000	3000	2180	2180	2180	2180	2180
Mild Steel	1280	1090	1090	650	650	650	590	590	590
Hard Steel	410	410	410	360	250	250	250	250	250

Lubrication
Location	Type	Frequency
Spindle splines in the	#2 lithium based tube	Weekly
spindle pulley drive	grease
Quill and column	Machine tool oil	Daily
Lift rack	20W non-detergentoil	Weekly (clean rack with
		kerosene before
		lubricating)
Table lift	Gear grease	Twice yearly (clean and
		repack)
Variable Drive Lubrication
Location	Type	Frequency
Speed control fork	Molybdenum based grease	Weekly
Counter shaft spindle	20W non-detergent	Daily
(upper end)
Hand wheel cam	#2 lithium based grease	Twice yearly

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