Milwaukee® MX4™ 48-20-3993 4-Cutter Rotary Hammer Drill Bit, 2 in Drill Bit, 45/64 in, 18 in D Cutting, Carbide Cutting Edge, 23 in OAL
The MILWAUKEE® MX4™ 4-Cutter SDS Max Rotary Hammer Drill Bits with solid head carbide deliver up to 5x longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar. Milwaukee designed their MX4™ 4-Cutter bits with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar, reducing downtime. Optimized flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge. The wear mark indicator on each drill bit shows you when they no longer meet the ANSI requirement. These MILWAUKEE® MX4™ 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.
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BrandMilwaukee®
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UPC045242102372
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Manufacturer Part Number48-20-3993
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CountryUSA|Canada
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FinishUncoated
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Point TypeCentering
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MaterialHigh Carbon Steel
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Flute Length18 in
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ColorSilver
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Type4-Cutter
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Applicable MaterialsBlock, Brick, Concrete and Reinforced Concrete
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Cutting Depth18 in
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Shank Size45/64 in
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Cutting DirectionRight Hand
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Cutting Edge MaterialCarbide
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Drill Bit Size2 in
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Overall Length23 in
- Rebar guards for increased durabilty in hard aggregate and rebar
- Lock Up
- Variable flutes for up to 15% more holes per battery charge
- Wear Mark Indicators to show end of life
- Fits all SDS Max rotary hammers
- Fits all SDS Max rotary hammers
| Competitor Name | Competitor Part Number |
|---|---|
| MSC | 59621169 |
| Grainger | 45L369 |
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Alternative Part Number8575373
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UNSPSC20111614
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IDEA Index ID8575373
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Package DescriptionEACH
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Standards/ApprovalsANSI Specified|CSA Approved
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WarrantyNo Warranty
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Milwaukee® MX4™ 48-20-3993 4-Cutter Rotary Hammer Drill Bit, 2 in Drill Bit, 45/64 in, 18 in D Cutting, Carbide Cutting Edge, 23 in OAL
The MILWAUKEE® MX4™ 4-Cutter SDS Max Rotary Hammer Drill Bits with solid head carbide deliver up to 5x longer life in concrete with rebar. Engineered with rebar guards to provide maximum durability in hard aggregate and rebar. Milwaukee designed their MX4™ 4-Cutter bits with sharp centering tips for exact spot drilling in concrete. The integrated 4-cutter design prevents lock-up in rebar, reducing downtime. Optimized flutes remove dust faster, reducing heat and delivering up to 15% more holes per battery charge. The wear mark indicator on each drill bit shows you when they no longer meet the ANSI requirement. These MILWAUKEE® MX4™ 4-Cutter Drill Bits are ideal for concrete with rebar and masonry applications.
Makita® LCT209W Cordless Combination Kit, Tools: Drill Driver, Impact Driver, 12 VDC, 1.3 Ah Li-Ion Battery, 2 Tool Count, 60 min Battery Charge Time
The Makita 12V max lithium-ion cordless 2-Pc. Combo kit delivers pro power and pro speed in an ultra-compact size, and offers two ideal additions to any tool box or tool belt. The LCT209W includes cordless tools for drilling, driving, and fastening. It's part of Makita's expanding 12V max lithium-ion cordless line-up, which includes driver-drills as well as an impact driver, impact wrench, circular saw, recipro saw, jig saw, vacuum, and flashlights. Consistent with the rest of Makita's groundbreaking lithium-ion battery technology, the 12V max lithium-ion battery delivers more power in a compact size for maximum efficiency. The LCT209W includes an ultra-compact two-speed driver-drill that weighs only 2.2 lb and delivers 200 in-lb of max torque. The variable speed impact driver weighs only 2 lb and delivers 800 in-lb of max torque for driving and fastening.
3.8" OVERALL LENGTH COMPRESSION SPRINGS; MAXIMUM LOAD 3.78 LBS.-AJA45 >


