Heavy duty construction for deep hole drilling and production work. Coolant holes provide coolant to the point reducing operating temperatures and improving chip removal.

Series TL90 - Taper Length HS

Size	Decimal
9.20mm	.3622
9.25mm	.3642
9.30mm	.3661
U	.3680
9.40mm	.3701
9.50mm	.3740
3/8"	.3750
V	.3770
9.60mm	.3780
9.70mm	.3819
9.75mm	.3839
W	.3860
9.90mm	.3898
25/64"	.3906
10.00mm	.3937
X	.3970
10.20mm	.4106
Y	.4040
13/32"	.4062
10.40mm	.4094
Z	.4130
10.50mm	.4134
10.60mm	.4173
27/64"	.4219
10.80mm	.4252
10.90mm	.4291
11.00mm	.4331
7/16"	.4375
29/64"	.4531
15/32"	.4688
12.00mm	.4724
31/64"	.4844
12.50mm	.4921
1/2"	.5000
13.0mm	.5118
33/64"	.5156
17/32"	.5312
35/64"	.5469
14.00mm	.5512
9/16"	.5625
14.50mm	.5709
37/64"	.5781
15.0mm	.5906
19/32"	.5938
39/64"	.6094
15.50mm	.6102
5/8"	.6250
16.00mm	.6299
41/64"	.6406
16.50mm	.6496
2132"	.6562
17.00mm	.6693
43/64"	.6719
11/16"	.6875