LXD Series 15xD Deep Hole Solid Carbide Drill Bits | External Coolant

15xD ultra-deep drilling capability without pecking
Wide parabolic flute for stable chip evacuation
External high-pressure coolant compatible
Reinforced shank for long-depth rigidity
Optimized for titanium and hardened steels ≤55 HRC
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PRODUCT DETAILS

Product Overview

The LXD Series 15xD Deep Hole Solid Carbide Drill is engineered for extreme deep-hole drilling applications traditionally dominated by gun drills. With a drilling depth of up to 15 times the diameter, this tool enables one-pass drilling in titanium alloys, stainless steels, and hardened steels up to 55 HRC.

The combination of an extra-wide parabolic flute geometry and external high-pressure coolant ensures stable chip evacuation and effective heat dissipation, even in ultra-deep holes. This design significantly reduces chip jamming, tool deflection, and thermal deformation.

Manufactured from premium solid carbide and coated with AlTiN or AlCrN, the LXD 15xD drill delivers a tool life comparable to gun drills, while reducing tooling cost to approximately one-third of traditional deep-hole systems.

Typical applications include aerospace structural beams, hydraulic cylinders, mold ultra-deep cavities, and other demanding CNC machining scenarios where depth, straightness, and reliability are critical.

Typical Applications

  • Aerospace structural beams and frames

  • Hydraulic cylinder deep oil channels

  • Mold ultra-deep cavities

  • High-precision CNC deep-hole machining

Product Size 

Diameter
(mm)
Flute Length
(mm)
Shank Diameter
(mm)
Overall Length
(mm)
Incremental 0.1mm
3.0563109
3.1-3.5644119
3.6-4.0754129
4.1-4.5835141
4.6-5.0945151
5.1-5.51016163
5.6-6.01136173
6.1-6.51207184
6.6-7.01317194
7.1-7.51398205
7.6-8.01508215
Incremental 0.5mm
8.51579227
9.01689237
9.517610248
10.018710258
10.519411273
11.020611283
11.5
21312294
12.022412304
12.523213315
13.024313325
13.525014337
14.026214347
14.526915358
15.028015368
15.528816379
16.029916389

Recommended Cutting Parameters

MaterialCutting Speed (Vc)Feed per Rev (f)Coolant
Titanium Alloy (Ti6Al4V)30–45 m/min0.05–0.10 mm/revHigh-pressure external
Stainless Steel45–60 m/min0.06–0.12 mm/revHigh-pressure external
Hardened Steel ≤55 HRC35–50 m/min0.05–0.10 mm/revHigh-pressure external

LXD Series Deep Hole Drilling System – Engineering Comparison

The LXD Series is a solid carbide deep hole drilling system engineered as a cost-effective alternative to traditional gun drilling. The matrix below helps engineers quickly select the correct depth ratio based on rigidity, chip evacuation, and machining stability.

ModelDepth RatioCoolant TypeDiameter RangeTypical ApplicationsMachining StabilityGun Drill Replacement Level
LXD 10xD10 × DExternal Coolant3.0 – 16.0 mmGeneral deep holes, mold plates, fixtures★★★★☆Partial replacement
LXD 15xD15 × DExternal Coolant3.0 – 16.0 mmHydraulic blocks, aerospace frames, deep cavities★★★★★Strong alternative
LXD 20xD20 × DExternal / Assisted Coolant3.0 – 14.0 mmOil channels, long hydraulic bores★★★★★Near full replacement
LXD 30xD30 × DHigh-Pressure External Coolant3.0 – 10.0 mmExtreme deep holes, gun drill substitution★★★★★+Full gun drill alternative

Note: All LXD drills feature reinforced shanks, polished parabolic flutes, imported carbide substrates, and AlTiN / AlCrN coatings for titanium alloys, stainless steel, and hardened steels up to 55 HRC.

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