The MILWAUKEE® INSIDER™ Box Ratchet 21mm 6 Point Sockets are designed to uniquely fit into the MILWAUKEE® M12 FUEL™ INSIDER™ Box Ratchet to deliver Unrivaled Access. The Low Profile design allows access in the tightest spaces and delivers pass-through capability up to 15mm and 9/16”. Laser etched markings on both sides of the socket allow greater visibility to change between drive sizes quickly. A dual retention groove system allows the INSIDER™ Box Ratchet 6 Point Sockets to be inserted into both sides of the tool for greater accessibility. These 21mm sockets have optimized geometry to reduce bolt rounding and stripping. Milwaukee Tool backs their sockets with a lifetime guarantee.

• INSIDER™ Box Ratchet Sockets are exclusively compatible with the M12 FUEL™ INSIDER™ Box Ratchet
• INSIDER™ Box Ratchet Sockets deliver Unrivaled Access in tight spaces
• Laser etched part number
• Box Ratchet sockets chamfered end allow quicker and more efficient insertion and removal
• Dual-sided laser etching for easy size identification
• Non-slip hex geometry to prevent stripping and fastener rounding
• 6-Point design
• Meets ASME Industry Standards
• Box Ratchet Sockets are backed by our Lifetime Guarantee
• Package Contents: (1) INSIDER Box Ratchet Socket 6 Point 21mm (49-16-1621)