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Drill bits - HSS Twist Drills - Double end twist drill - double end twist drill

Double end twist drills

Norm: Enterprise Standard

Material: HSS, HSS-Cobalt



Metric Sizes
Size	Flute Length	Overall Length		Size	Flute Length	Overall Length
d	l	L		d	l	L
2	10	38		4.8	16	62
2.5	10	43		5	16	62
3	13	46		5.1	16	62
3.1	13	46		5.2	16	62
3.2	13	49		5.5	16	66
3.3	13	49		6	19	66
3.5	16	52		6.2	19	66
4	16	55		6.3	19	66
4.2	16	55		6.4	19	66
4.5	16	58		6.5	19	66
American type / Inch Size
Size	Flute Length	Overall Length		Size	Flute Length	Overall Length
d	l	L		d	l	L
7/64"	1/2"	1-7/8"		7/32"	1/2"	2-3/8"
1/8"	1/2"	2"		1/4"	1/2"	2-1/2"
9/64"	1/2"	2"		# 11	1/2"	2-1/4"
5/32"	1/2"	2-1/16"		# 20	1/2"	2-1/8"
3/16"	1/2"	2-3/16"		# 30	1/2"	2"