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American Heller's UTE Drills are used for Solid Drilling operations. Solid Drilling is a deep hole drilling process used when only one operation is desired to obtain the required bore diameter. Solid Drilling tools remove all the material from the bore in just one pass. Additionally due to the quality of the bore finish the majority of operations require no additional machining to 'clean up' the bore.
American Heller recommends our UTE drills for drilling holes between .496-.787" dia. For holes .787-1.375" dia., we recommend our BTU Style brazed tooling. For holes larger than 1.375" dia. we recommend our standard line of Unidex Solid Drilling Tools or our alternate line of BTA Indexable Solid Drilling Tools.
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Consider these unique advantages of American Heller's Small Dia. Brazed Disposable Drill Heads (UTE)
- Tools sizes between .496-.787" are stocked for quick delivery
- Tools produced to an accuracy of ±.0005" on diameter resulting in closer tolerance holes
- Tools can be thrown away after use or wear
- Various grades available for drilling different materials
- 4 premium grades of coating for optimum tool life
Note:
Hole tolerances, concentricity, surface finish and runout will be affected by a number of factors including machine condition, alignment, drilling bar straightness, bushing size, etc.
General Information
American Heller's UTE drills are for use with the BTA/STS drilling systems. For more information on the BTA/STS drilling systems please refer to our Drilling Information Page . Our UTE heads are stocked from .496-.787" dia. The UTE heads are thrown away when they are worn. Additionally they have an external thread and chips are ID exhausted through the drilling bar/drill tube. The following table shows the different tool ranges and the standard drilling bar/drill tube that they are used with.
| PART NO. |
DIA (INCH) |
BAR/TUBE |
BAR/TUBE OD (INCH) |
| UTE-0094 |
0.496 - 0.535 |
794-STS |
0.433 |
| UTE-0095 |
0.536 - 0.574 |
795-STS |
0.472 |
| UTE-0096 |
0.575 - 0.614 |
796-STS |
0.511 |
| UTE-0097 |
0.615 - 0.657 |
797-STS |
0.551 |
| UTE-0098 |
0.658 - 0.696 |
798-STS |
0.590 |
| UTE-0099 |
0.697 - 0.744 |
799-STS |
0.629 |
| UTE-0000 |
0.745 - 0.787 |
800-STS |
0.669 |
American Heller's UTE Drill Heads are available in a variety of different grades for drilling different materials. The table below shows the available grades and the part material that they should be used with. The UP grade is the default grade for American Heller's UTE Drills.
| GRADE |
ISO |
PART MATERIAL |
| *UP |
P10-P20 |
STEEL |
| ALLOY STEEL, |
| STAINLESS STEEL, |
| K10-K20 |
STEEL,ALLOY STEEL |
| STAINLESS STEEL, |
| CAST IRON |
| ALUMINUM |
| NON-FERROUS |
| TFKS |
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HIGH TEMPERTURE ALLOY |
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