Product Description
Milwaukee SHOCKWAVE Insert Bit Hex 4 mm — 25 Pack
Model Number: 48-32-4726
The Milwaukee 48-32-4726 is a 25-pack of SHOCKWAVE Impact Duty Hex 4 mm insert bits — bulk-quantity metric hex driver bits for professional applications involving high-volume metric hex socket fastener driving in HVAC equipment, industrial machinery, controls and automation systems, European-standard mechanical assemblies, and commercial equipment installations where 4 mm hex is a standard fastener specification. The 4 mm hex size is one of the most commonly used metric hex fastener sizes in European-manufactured HVAC, controls, and precision mechanical equipment — found in panel mounting hardware, terminal block fasteners, equipment cover screws, and machinery assembly fasteners throughout industrial and commercial equipment that uses metric fastener standards. Milwaukee manufactures SHOCKWAVE Impact Duty bits from proprietary steel with multi-zone heat treatment specifically calibrated for the 4 mm hex profile — the tip zone receives hard surface treatment for wear resistance under the repeated contact stress of hex socket engagement, while the shank maintains toughness for impact energy absorption without brittleness.
The Shockzone torsional compliance feature machined into the SHOCKWAVE bit shank absorbs peak rotational impact energy from each impact driver hammer strike before it reaches the 4 mm hex driving tip — protecting the small-cross-section tip from the progressive rounding and deformation that standard 4 mm hex bits experience under impact driver loading. The 25-pack bulk format reduces per-bit purchasing cost significantly compared to individual unit or smaller-pack purchasing, making it the economical standard for service teams and installation crews who drive 4 mm metric hex fasteners regularly across HVAC, controls, and equipment installation and service work where this fastener size is encountered on every job. SHOCKWAVE's 10x life advantage over standard bits under impact driver use means fewer bit changes and lower total bit cost across the pack's full use lifetime.
Available across Milwaukee's full SHOCKWAVE metric hex lineup from 2.5 mm through 12 mm in both individual and 25-pack bulk formats — see the complete range for all available metric hex sizes.
Features
- Milwaukee proprietary SHOCKWAVE steel — up to 10x longer life under impact driver use
- Multi-zone heat treatment protects small 4 mm hex profile from rounding under impact
- Shockzone geometry absorbs peak torsional impact energy to protect the driving tip
- 4 mm metric hex for HVAC, controls hardware, and European-standard equipment fasteners
- 25-pack bulk format for economical per-bit cost on high-volume metric hex work
Specifications
- Drive Type: Hex 4 mm
- Length: 1 in. (Insert Bit)
- Shank: 1/4 in. Hex
- Quantity: 25 Pack
Includes
- (25) Milwaukee 48-32-4726 SHOCKWAVE Insert Bits Hex 4 mm
