Skip to main content
Close-up of dark impact socket showing 12-point interior, ASTA and '17mm CR-MO' markings and retention holeSide/top view of dark impact socket on white background with ASTA and 17mm CR-MO markings and retention holeAngled view of black impact socket showing 12-point opening, ASTA 17mm CR-MO text and retention hole

Impact Socket 12-Point 17mm 1/2-Inch Drive, CR-MO Steel

Heavy-duty 17mm impact socket with 12-point drive, CR-MO construction for pneumatic tools and high-torque applications.

Request Quote

Description

Impact Socket 12-Point 17mm 1/2-Inch Drive, CR-MO Steel

Brief Overview

This 17mm impact socket is engineered for professional mechanics and high-volume shops requiring reliable fastener engagement under pneumatic impact conditions. The 12-point drive geometry delivers efficient torque transfer while minimizing fastener rounding during heavy-duty applications. Constructed from chromium-molybdenum steel with impact-rated treatment, it pairs seamlessly with 1/2-inch pneumatic impact wrenches and complements complementary sizes like 12mm impact sockets and 21mm impact alternatives for comprehensive socket coverage across common automotive and industrial fasteners.

Key Features

  • 12-Point Drive Profile: Dual-hexagon internal geometry provides multiple engagement points, reducing fastener damage and enabling faster bit-to-fastener seating
  • CR-MO Steel Construction: Chromium-molybdenum alloy with impact-hardened treatment withstands repeated shock loads from pneumatic tools without chipping or cracking
  • 1/2-Inch Square Drive: Standard 1/2" drive compatibility ensures universal fit with professional-grade pneumatic impact wrenches
  • Compact Design: 38mm overall length (D2 × L dimensions) fits tight engine bays and restricted access points
  • Retention Pin Hole: Flanged base with through-hole for optional retaining ring or safety pin—prevents accidental socket ejection during rapid impacts
  • Matte Impact Finish: Dark, non-reflective surface protects steel from corrosion and provides professional appearance

Business Advantages for Resellers

  • High Demand Size: 17mm is a frequently requested metric size across European automotive platforms (VW, Audi, BMW spark plugs, suspension fasteners)
  • Repeat Purchase Potential: Mechanics build collections across fastener sizes; selling one socket naturally drives sales of complementary sizes
  • Durability Profile: CR-MO impact sockets have multi-year shop floor life, supporting customer loyalty and repeat orders
  • Bulk Packaging Opportunity: Stock in case quantities (12–24 units per size) to meet shop inventory replenishment cycles

Technical Specifications

Specification Value
Socket Size 17mm
Drive Type 1/2-Inch Square Drive
Drive Profile 12-Point (Dual-Hex)
Material Chromium-Molybdenum (CR-MO) Steel
Head Diameter (D1) 26mm
Body Diameter (D2) 26mm
Wall Thickness (T) 10mm
Overall Length (L) 38mm
Retention Hole Yes (Flanged Base)
Finish Impact-Treated Matte Black
Part Number 525617P

Why Mechanics Choose This Socket

The 17mm size covers critical fasteners on European vehicle platforms—spark plugs, oil drain plugs, suspension components, and exhaust manifold studs. The 12-point profile reduces cam-out risk compared to 6-point designs, minimizing stripped fastener heads and costly rework. The compact 38mm length allows access in confined engine compartments where longer sockets would foul surrounding components.

Reseller Value Proposition

Stock this size as part of a tiered impact socket program. The 17mm pairs naturally with neighboring sizes (16mm, 18mm, 19mm, 21mm) to form a complete automotive toolkit. Bulk orders reduce per-unit costs and improve margin sustainability. Professional shops typically maintain 2–3 units per size for simultaneous service calls, driving repeat replenishment orders.

Ready to build inventory? Order in bulk to maximize margin and secure stock before peak seasonal demand.