1.261 - 1.510 Diameter Drill Sergeants

K-Tool, Inc. DS & DSL
  • - Available in 2:1, 4:1 & 6:1 Ratio
  • - Helical or Straight Flute Design
  • - Coolant thru is standard
1.261 - 1.510 Dia. Drill Sergeant.png

Patent # 5,259,707

Use Straight Flute For Lathe and High Pressure Coolant Applications over 500 P.S.I.

Tool Info.      
Helical Flute 1.261 - 1.510 Dia. Drill Sergeants      
Tool # Size Range Standard Inserts Grade L D.O.C. Coolant Plug S
DS-126-138S 1.261 - 1.385 DI-1281 / DI-1312 / DI-1343 / DI-1375 X33 7.250 3.000 NPT 1/4 1.250
DS-126-138L 10.250 6.000 N/A
DS-126-138XL 13.250 9.000 N/A
DS-138-151S 1.386 - 1.510 DI-1406 / DI-1437 / DI-1468 / DI-1500 7.250 3.000 NPT 1/4
DS-138-151L 10.250 6.000 N/A
DS-138-151XL 13.250 9.000 N/A
Standard Tap Sizes Highlighted in Red
Tool Info.      
Straight Flute 1.261 - 1.510 Dia. Drill Sergeants      
Tool # Size Range Standard Inserts Grade L D.O.C. Coolant Plug S
DSL-126-138L 1.261 - 1.385 DI-1281 / DI-1312 / DI-1343 / DI-1375 X33 10.250 6.000 NPT 1/4 1.250
DSL-126-138XL 13.250 9.000
DSL-138-151L 1.386 - 1.510 DI-1406 / DI-1437 / DI-1468 / DI-1500 10.250 6.000
DSL-138-151XL 13.250 9.000
Use Straight Flute For Lathe and High Pressure Coolant Applications over 500 P.S.I.

Insert Info.

DI Insert.png
Insert Info.
1.261 - 1.510 Dia. Drill Sergeants
Dia. Tolerance +/-.002
Insert # D Grade Screw Wrench
DI-1281 1.2812 X33 638T T-15
DI-1312 1.3125
DI-1343 1.3438
DI-1375 1.3750
DI-1406 1.4062
DI-1437 1.4375
DI-1468 1.4688
DI-1500 1.5000 K11

Technical Data

Insert Loading Procedure

  • - Air blast pocket clean
  • - Hold insert in place
  • - Tighten screws until each one makes light contact
  • - Alternate tightening screws several times until screws are tight
Speed and Feed Info.
1.261 - 1.510 Dia. Drill Sergeants
Material S.F.M. I.P.R.
Mild & Low Carbon Steel
Ex. 1018, 1020, 1117, 1141, 12L14
700 - 900 .006 - .010
High Carbon & Alloy Steel
Ex. 1045, 4140, 4340, 52100, 8620
500 - 600 .006 - .010
Lower Carbon Tool Steel
Ex. P-20, H-13, S-7
400 - 500 .006 - .010
Tool Steel
Ex. A-2, A-6, D-2, M-2
350 - 450 .006 - .010
Stainless Steel
Ex. 304, 316, 420, 15-5PH, 17-4PH
350 - 550 .005 - .008
Iron
Ex. Cast, Ductile, Nodular
600 - 800 .008 - .014
Nickel & Titanium Alloy
Ex. Inconel, Hastelloy, TI-6AL-4V
100 - 200 .003 - .005
Non-Ferrous
Ex. Aluminum, Bronze, Brass
1000 - 2000 .008 - .014
Insert Grade Selection
Material Material Examples Preferred Grade
High & Low Carbon Steels 1018, 1020, 1117, 1141, 12L14 K11 or X33
High Carbon & Alloy Steels 1045, 4140, 4340, 52100, 8620 K11 or X33
Lower Carbon Tool Steels P-20, H-13, S-7 K11 or X33
Tool Steels A-2, A-6, D-2, M-2 K11 or X33
Stainless Steels 303, 304, 316, 420, 15-5PH, 17-4PH K11 or X33
Iron Cast, Nodular K11 or X33
Iron Ductile K11 or X33
Nickel & Titanium Alloys Inconel, Hastelloy, TI-6AL-4V K11 or X33
Non-Ferrous Metals Aluminum, Bronze, Brass K11 or X33
Insert Grade Description
Grade Description
X33 High Performance Nitride
K11 Universal High Performance Dense Coating
**X33 will be replaced with K11
as inventory runs out **
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