Product Description
Milwaukee SHOCKWAVE 3-1/2 in. Power Bit Square Recess #3
Model Number: 48-32-4573
The Milwaukee 48-32-4573 is a SHOCKWAVE Impact Duty 3-1/2 in. Power Bit in Square Recess #3 (Robertson #3) — the large square drive specification in the extended 3-1/2 in. power bit length for driving #3 square recess fasteners in heavy structural and framing applications where the larger drive size provides the torque transmission needed for large-diameter wood screws and construction fasteners in load-bearing assemblies. The #3 Robertson square drive is used with larger-format structural wood screws, lag screws, heavy-duty deck screws, framing fasteners, and construction hardware where the #2 square drive's smaller cross-section would not provide adequate drive engagement for the torque required to fully seat large fasteners in dense wood and engineered lumber. The 3-1/2 in. power bit length provides the extended reach needed to clear the driver chuck from surrounding structure when driving fasteners in recessed locations, deep counterbores, and tight-clearance framing cavities where the shorter 1 in. insert bit leaves the driver chuck contacting adjacent materials before the bit reaches the fastener.
Milwaukee manufactures SHOCKWAVE Power Bits from proprietary steel with multi-zone heat treatment and the Shockzone torsional compliance geometry — at the high torque levels that #3 square drive structural fasteners require, the Shockzone geometry absorbs the peak torsional impact energy from each impact driver hammer strike before it reaches the #3 square tip, preventing the tip deformation that standard bits experience under the combination of high torque and impact loading in structural screw driving. The #3 square drive's larger engagement geometry provides inherently better cam-out resistance than smaller square sizes or Phillips under high torque, and the SHOCKWAVE construction maintains the sharp, precise tip geometry that maximizes this cam-out resistance advantage throughout the bit's extended service life.
See Milwaukee's complete SHOCKWAVE square recess bit lineup for all available sizes (#1, #2, #3) in multiple lengths and pack quantities for every square drive fastener driving application.
Features
- Milwaukee SHOCKWAVE steel — up to 10x longer life under impact driver structural use
- #3 Robertson square drive for large structural screws requiring high-torque engagement
- Shockzone geometry absorbs peak torque spikes at demanding #3 drive torque levels
- 3-1/2 in. length for recessed fasteners and confined-space structural driving clearance
- Superior cam-out resistance vs. Phillips at the high torques structural fasteners require
Specifications
- Drive Type: Square Recess #3 (Robertson #3)
- Length: 3-1/2 in. (Power Bit)
- Shank: 1/4 in. Hex
Includes
- (1) Milwaukee 48-32-4573 SHOCKWAVE 3-1/2 in. Power Bit Square Recess #3
