Product Description
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Milwaukee Stop Bit Nozzle Assembly
Model Number: 14-52-0110
The Milwaukee 14-52-0110 is a genuine OEM Stop Bit Nozzle Assembly for the M18 HAMMERVAC dedicated dust extractor line. This is the upper nozzle, the business end of the extractor that surrounds the drill bit and seals against the work surface to capture concrete dust at the point of creation. It is the single most important consumable on the entire system, because everything downstream depends on it. The HEPA filter, the AUTOPULSE cleaning mechanism, and the dust box only ever see the dust the nozzle manages to capture. This particular version is configured for use with stop bits rather than standard SDS Plus bits, and that distinction matters at the point of purchase: Milwaukee produces a separate standard nozzle assembly under part number 14-52-0105 for conventional bits. Ordering the wrong configuration is the most common mistake on this part, so confirm which style of bit you are running before you buy. The nozzle is a genuine wear item in daily use, since the bristle brush ring abrades against concrete on every hole and the nozzle body itself takes impact, dust loading, and heat over the course of a job.
Milwaukee documents this nozzle assembly on service parts bulletin 54-05-0085 at Figure 5 for the 2916-DE M18 FUEL HAMMERVAC 1-1/4 in. Dedicated Dust Extractor, and on bulletin 54-05-0055 at Figure 36 for the 2915-DE M18 FUEL HAMMERVAC 1-1/8 in. Dedicated Dust Extractor with serial number L89A. Milwaukee's operator's manual 58-14-0227, which covers the 2912-DE and 2915-DE HAMMERVAC extractors, also cites 14-52-0110 by catalog number in its nozzle replacement instructions. Those instructions are straightforward: rotate the nozzle release lever down into the open position and pull the nozzle straight out of the lower nozzle assembly, which Milwaukee lists separately as catalog number 42-20-0615. Installation reverses the procedure, and no tools or disassembly are required. Because Milwaukee configures dust extraction components differently across HAMMERVAC generations and bit diameters, always verify your extractor's catalog number and serial number against the official Milwaukee parts lookup before ordering rather than matching by appearance, since nozzles from different generations can look closely related without being interchangeable.
Choosing genuine Milwaukee OEM here is a compliance decision as much as a quality decision. Milwaukee rates the HAMMERVAC system for full OSHA Table One compliance when drilling up to the extractor's rated diameter and 8 in. in depth, and that rating depends on the nozzle maintaining a proper seal at the work surface. A nozzle with a worn, flattened, or missing bristle ring lets respirable crystalline silica escape at the hole, which defeats the capture rate the entire system is built around and puts the crew outside the exposure control method the extractor was specified for. The certified HEPA filtration in these extractors captures 99.97 percent of particles larger than 0.3 microns, but only for the dust that actually reaches it. Milwaukee's factory-built assembly consists of the Stop Bit Nozzle at part number 31-01-0212, the Hair Brush Stop bristle ring at 43-31-0470, and the Retaining Ring at 34-60-7080, supplied together and to factory tolerances so the seal geometry and the bit clearance are correct out of the package. Keeping a spare on the truck is cheap insurance against a stopped job when a nozzle wears through mid-shift.
Features
- Genuine Milwaukee OEM accessory, not an aftermarket substitute
- Configured specifically for stop bits, not conventional SDS Plus bits
- Sold individually so you order only the quantity your crew needs
- Captures concrete dust at the point of creation to protect capture efficiency
- Supports OSHA Table One compliance when the bristle seal is in good condition
- Bristle brush ring maintains the seal between the nozzle and the work surface
- Tool-free replacement using the nozzle release lever, no disassembly required
- Factory-assembled with nozzle body, bristle ring, and retaining ring included
- Fits the 2912-DE, 2915-DE, and 2916-DE M18 HAMMERVAC dust extractors
- Documented at Figure 5 on bulletin 54-05-0085 and Figure 36 on bulletin 54-05-0055
- Protects the HEPA filter and AUTOPULSE system by keeping capture at the source
- High-wear consumable, worth stocking as a spare to avoid downtime mid-shift
Specifications
- Manufacturer: Milwaukee Tool
- Part Number: 14-52-0110
- Official Description: Nozzle Top Assembly for Stop Bit
- Component Type: Upper Dust Extraction Nozzle Assembly
- Primary Fitment: 2916-DE M18 FUEL HAMMERVAC 1-1/4 in. Dedicated Dust Extractor
- Also Referenced On: 2915-DE M18 FUEL HAMMERVAC 1-1/8 in. Dedicated Dust Extractor, serial L89A, and 2912-DE M18 HAMMERVAC
- Parts Diagram Position: Figure 5 on Bulletin 54-05-0085, Figure 36 on Bulletin 54-05-0055
- Component Part Numbers: 31-01-0212 Stop Bit Nozzle, 43-31-0470 Hair Brush Stop, 34-60-7080 Retaining Ring
- Quantity: Sold individually, (1) nozzle assembly
- Part Type: Genuine Milwaukee OEM Accessory
Includes
- (1) Milwaukee 14-52-0110 Stop Bit Nozzle Assembly, consisting of:
- (1) Stop Bit Nozzle - part number 31-01-0212
- (1) Hair Brush Stop - part number 43-31-0470
- (1) Retaining Ring - part number 34-60-7080
The Lower Nozzle Assembly is NOT included and is ordered separately as catalog number 42-20-0615. The HEPA Filter Assembly and Dust Box are NOT included and are ordered separately. Note that this nozzle is configured for stop bits - if you are running conventional SDS Plus bits, order the standard nozzle assembly under part number 14-52-0105 instead. Always verify by serial number using Milwaukee's online parts lookup before ordering.
