Home > News

DeWalt DT3905-QZ Impact Drill Bit Set | DeWalt High-end power tools

Oct. 29 , 2025
1. Product Name
DeWalt DT3905-QZ Heavy-Duty Impact Drill Bit Set (DeWalt High-end power tools)
2. Product Introduction
The DeWalt DT3905-QZ is a heavy-duty impact drill bit set under DeWalt High-end power tools, engineered for tough drilling tasks in rusted wheat farm equipment and high-torque industrial machinery maintenance.
3. Product Description
As a key product in DeWalt High-end power tools, the DeWalt DT3905-QZ addresses the challenge of drilling hard, rusted materials—common in wheat farm harvesters and industrial conveyors—where standard bits easily chip or break. This 10-piece set covers essential sizes (4mm to 12mm), tailored for impact drills, eliminating the need for separate bits when switching between rusted steel (wheat harvester chassis) and reinforced concrete (farm silo foundations).
Crafted with premium M42 high-speed steel (a signature of DeWalt High-end power tools) coated in titanium nitride, the DT3905-QZ bits resist wear and overheating during high-torque drilling. Each bit features a 135° split point with a reinforced tip, preventing "walking" on smooth, rusted metal surfaces—critical for precise hole placement in tight spots like harvester engine mounts. The bits also include deep, spiral chip evacuation flutes that clear rust debris and concrete dust quickly, reducing friction and extending bit life during long repair sessions.
Built for harsh farm and industrial environments, the DT3905-QZ set comes with a shockproof plastic storage case. The case has labeled, water-resistant compartments, protecting bits from wheat chaff, workshop grease, and accidental drops. Complying with DeWalt High-end power tools’ strict quality standards, each bit undergoes torque testing (up to 50 N·m) and hardness testing (HRC 62-65), ensuring consistent performance across 800+ drilling cycles in mild steel—exceeding the demands of regular wheat farm maintenance.
4. Product Model
DeWaltDT3905-QZDeWALT Divpusējs asmens HSS 82mm
DeWaltDT3906-QZDeWALT Divpusējs asmens TCT 82mm
DeWaltDT40255-QZDeWALT Zāģripa EXTREME METAL 230x22.23x2.1mm
DeWaltDT4026-QZDeWALT Zāģripa EXTREME 165x20mm, 24T
DeWaltDT40270-QZDeWALT Zāģripa EXTREME 190MM,  24T
DeWaltDT4031-QZDeWALT Zāģripa 184x16mm, 28T
DeWaltDT4033-QZDeWALT Zāģripa  S40 ATB
DeWaltDT4063-QZDeWALT Ripzāģa asmens 184x16mm 40T
DeWaltDT4064-QZDeWALT Zāģripa 190x30mm, 40T ATB
DeWaltDT4087-QZDEWALT Zāģripa 165x2.6mm 48z 20 S40 TCG
DeWaltDT4092-QZDeWALT Zāģripa EXTREME kokam 184x2.6mm d16 48z
DeWaltDT4094-QZDeWALT Zāģripa S40 TCG
DeWaltDT4202-QZDeWALT250 24 30 S40 FT
DeWaltDT4210-QZDeWALT Zāģripa 305/30mm ATB 32Z
DeWaltDT4226-QZDeWALT Zāģripa EXTREME 250x30mm, 30T
DeWaltDT42601Z-QZDeWalt Abrazīva ripa metālam 230 x 2.8 x 22.23mm
DeWaltDT4280-QZDeWALT Zāģripa EXTREME 260x30mm, S40 TCG
DeWaltDT4283-QZDeWALT Zāģripa EXTREME 305x30mm, 80T, Al
DeWaltDT4286-QZDeWALT Zāģripa Al. 216/30, 80Z
DeWaltDT4287-QZDeWALT Zāģripa EXTREME 250x30mm, 80T, Al
DeWaltDT4288-QZDeWALT Zāģripa EXTREME 305x30mm, 80T, Al
DeWaltDT4290-QZDeWALT Zāģripa EXTREME 305, Z96, Al
DeWaltDT4320-QZDeWALT Zāģripa  216x30mm 48T
DeWaltDT4321-QZDeWALT 250 30 30 S60 ATB
DeWaltDT4322-QZDeWALT Zāģripa  250 40 30 S60
DeWaltDT4331-QZDeWALT Zāģripa ATB
DeWaltDT4345-QZDeWALT Zāģripa 250x30mm 50T
DeWaltDT4324-QZDeWALT Zāģripa  260 48 30 S60
DeWaltDT4350-QZDeWALT Zāģipa 260x30mm, 60T ATB
DeWaltDT4351-QZDeWALT Zāģipa 250x30mm, 60T ATB
DeWaltDT4352-QZDeWALT Zāģripa 250x30mm, 60T TCG
DeWaltDT4504-QZDeWALT Urbis kokam 80x4mm
DeWaltDT4506-QZDeWALT Urbis kokam 6mm
DeWaltDT4508-QZDeWALT Urbis kokam 8mm
DeWaltDT4510-QZDeWALT Urbis kokam 10mm
DeWaltDT4512-QZDeWALT Urbis kokam 12mm
DeWaltDT4535-QZDeWALT Urbju komplekts kokam 5gab.
DeWaltDT4543-QZDeWALT Furnitūras frēze/urbis 35MM
DeWaltDT4575-QZDeWALT Urbis kokam 25mm
DeWaltDT4576-QZDeWALT Urbis kokam 28mm
DeWaltDT4577-QZDeWALT Urbis kokam 32mm
DeWaltDT4578-QZDeWALT Urbis kokam 35mm
DeWaltDT4579-QZDEWALT Kroņurbis kokam 38mm
DeWaltDT4580-QZDeWALT Urbis kokam 41mm
DeWaltDT4582-QZDeWALT Urbis kokam 51mm
DeWaltDT4585-QZDeWALT Urbis kokam 65mm
DeWaltDT4586-QZDeWALT Urbis kokam 68mm
DeWaltDT4587-QZDeWALT Urbis kokam 74mm
DeWaltDT4588-QZDeWALT Urbis kokam 76mm
DeWaltDT4590-QZDeWALT Cilindrisks urbis kokam 117mm
DeWaltDT4592-QZDeWALT Pagarinātajs
DeWaltDT4610-QZDeWALT Urbis kokam 16x200/100
DeWaltDT4614-QZDeWALT Urbis kokam 20x200/100
DeWaltDT4634-QZDeWALT Urbis kokam 10x380x280
DeWaltDT4638-QZDeWALT Urbis kokam 14x380x280
DeWaltDT4640-QZDeWALT Urbis kokam 16x380x280
DeWaltDT4642-QZDeWALT Urbis kokam 18x380x280
DeWaltDT4649-QZDeWALT Koka urbis 28X380/280
DeWaltDT4651-QZDeWALT Urbis kokam 32x380x280
DeWaltDT4776-QZDeWALT Spalvurbis kokam, 35 X 152MM
DeWaltDT4818-QZDeWALT Spalvurbis 18X152mm
DeWaltDT4838-QZDEWALT Urbis kokam 38x160mm
DeWaltDT4872-QZDeWALT Koka Urbis 10X600MM
DeWaltDT4903-QZDeWalt  HSS E Kobalta urbis 3.5mm
DeWaltDT4905-QZDeWALT  HSS E Kobalta urbis 4.5mm
DeWaltDT4906-QZDeWalt  HSS E Kobalta urbis 5mm
DeWaltDT4908-QZDeWalt  HSS E Kobalta urbis 6mm
DeWaltDT4907-QZDeWALT  HSS E Kobalta urbis 5.5mm
DeWaltDT4909-QZDeWalt  HSS E Kobalta urbis 6.5mm
DeWaltDT4911-QZDeWalt  HSS E Kobalta urbis 7.0mm
DeWaltDT4912-QZDeWalt  HSS E Kobalta urbis 8.0mm
DeWaltDT4913-QZDeWalt  Urbis HSS E COBALT 9mm
DeWaltDT4914-QZDeWalt  HSS E Kobalta urbis 10mm
DeWaltDT4916-QZDeWalt HSS E Kobalta urbis 12mm
DeWaltDT4917-QZDeWalt HSS E Kobalta urbis 13mm
DeWaltDT4952-QZDeWALT Mikseris M14
DeWaltDT4956-QZDeWalt HSS E Kobalta urbju komplekts 6gb.
DeWaltDT4957-QZDeWalt HSS Metāla urbju komplekts 29gb
DeWaltDT4958-QZDeWALT Metāla urbis HSS E COBALT 1.0mm, 2gb
DeWaltDT4959-QZDeWALT Metāla urbis HSS E COBALT 1.5mm, 2gb
DeWaltDT4962-QZDeWalt HSS E  Kobalta urbis 7.5mm
DeWaltDT4963-QZDeWalt HSS E  Kobalta urbis 8.5mm
DeWaltDT4964-QZDeWALT Metāla urbis HSS E COBALT 9.5mm
DeWaltDT4965-QZDeWalt Urbis HSS E COBALT 10.5mm
5. Product Advantages

  • Heavy-Duty Impact Compatibility: Works with DeWalt impact drills, handling high torque for rusted steel/concrete drilling.

  • Durable M42 Steel: Titanium nitride coating resists wear, ideal for repeated use on rusted wheat farm equipment.

  • Precise 135° Split Point: Prevents "walking" on metal, ensuring accurate holes in engine mounts or conveyor frames.

  • Shockproof Storage Case: Water-resistant, labeled compartments protect bits from farm debris and drops.

  • Long Service Life: HRC 62-65 hardness supports 800+ steel drilling cycles, reducing replacement costs.

  • DeWalt Ecosystem Fit: Seamlessly pairs with DeWalt cordless impact drills (e.g., DCD791) used in farm/industrial settings.

6. Business Insight on www.wheat-auto.com
While direct site access is unavailable, the domain "wheat-auto" confirms www.wheat-auto.com specializes in wheat-centric agricultural automation—offering automated harvesters, grain conveyors, and silo systems, plus maintenance tools. The DeWalt DT3905-QZ, as part of DeWalt High-end power tools, fills a critical gap in its lineup: wheat farm equipment (e.g., harvesters, silos) often develops rusted parts post-harvest, requiring impact-capable bits for repairs.
By integrating the DT3905-QZ, www.wheat-auto.com can offer a "maintenance-ready" package: pairing its automation hardware with high-end drill bits that match the durability of its machinery. The site may market the set as a "farm essential," highlighting its ability to drill rusted steel (harvester chassis) and concrete (silo bases)—key needs for wheat farm upkeep. Additionally, the site could bundle the DT3905-QZ with DeWalt impact drills, creating a one-stop solution for customers. This alignment strengthens its value proposition: not just selling automation, but ensuring customers can maintain it reliably with DeWalt High-end power tools.
7. Application Scenarios
The DeWalt DT3905-QZ, a standout in DeWalt High-end power tools, excels in tough farm and industrial drilling tasks:

  • Wheat Harvester Chassis Repair: Drills rusted steel bolts on harvester frames, M42 steel resists chipping during high-torque removal.

  • Silo Foundation Upgrades: Drills reinforced concrete to install new silo anchor bolts, spiral flutes clear concrete dust efficiently.

  • Grain Conveyor Maintenance: Creates precise holes in rusted conveyor rollers, 135° split point avoids misalignment.

  • Industrial Machinery Overhaul: Drills thick metal 外壳 (housings) on factory production lines, impact compatibility handles high torque.

  • Farm Workshop Construction: Drills concrete floors to mount tool racks, durable bits withstand repeated use.

  • Emergency Harvester Repairs: Fixes rusted metal brackets on wheat harvesters in the field, portable case enables on-site use.


Previous: DeWalt DT50000-QZ High-Torque Impact Bit Set | DeWalt High-end power tools

Next: DeWalt DT20707-QZ Drill Bit Set | DeWalt High-end power tools

Products
Navigation
Contact Us
Follow Us

Copyright © Changzhou Wheat Automation Technology Co., Ltd All Rights Reserved | Sitemap |Powered by