We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Westward alloy steel screw mandrel 3-9/64 in length

Westward

Westward 39CF07 Screw Mandrel Alloy Steel 3-9/64 in. L electrician tool

SKU CH-V1ET-WMZR2

Alloy steel screw mandrel for hydraulic punch drivers, 3-9/64 in. long, compatible with Grainger items 39CE85, 39CE87, 39CE88, 39CE91, 39CE92 and 39CE93

  • Alloy steel construction resists wear during repetitive punching tasks
  • 3-9/64 in overall length reaches confined electrical boxes
  • Compatible with hydraulic punch drivers for high-force applications
  • Non-impact rated design suits controlled manual operation
  • Fits Grainger items 39CE85 39CE87 39CE88 39CE91 39CE92 39CE93

Screw Mandrel for Hydraulic Punch Driver

The Westward 39CF07 screw mandrel is an alloy steel accessory built for hydraulic punch driver setups. It serves electricians and maintenance crews who need a durable connector between the driver and compatible punches or dies. The component is sold new and rated for standard hand-operated hydraulic pressure, not impact use. Its construction targets repetitive alignment tasks in panel and enclosure work.

Replaces Worn Mandrels in Existing Westward Kits

This mandrel fits Grainger items 39CE85, 39CE87, 39CE88, 39CE91, 39CE92 and 39CE93, letting technicians swap out a bent or stripped original without changing the punch set. The upgrade is worth it when the old mandrel no longer holds centre or shows thread damage that risks misaligned holes. It is not for builders who need impact-rated drive components or a different brand mount.

Alloy Steel Body Holds Shape Under Repeated

The all-alloy steel body resists deformation when the hydraulic ram loads and unloads across multiple punches in a single job. Because it lacks impact rating, the mandrel is intended for steady hydraulic pressure rather than hammer-driven shock. The 3-9/64 in overall length keeps the punch engaged through the full stroke without bottoming out. Users who run high-cycle production should inspect threads regularly for wear.

Highlights

  • Alloy steel construction resists wear during repetitive punching tasks
  • 3-9/64 in overall length reaches confined electrical boxes
  • Compatible with hydraulic punch drivers for high-force applications
  • Non-impact rated design suits controlled manual operation
  • Fits Grainger items 39CE85 39CE87 39CE88 39CE91 39CE92 39CE93

Specifications

BrandWESTWARD

Questions about this item

What overall length must my tool belt or pouch accommodate for the 39CF07 mandrel?

The mandrel measures 3 9/64 inches overall, so any pouch or belt loop needs at least that much clear depth.

Which hydraulic punch driver models does the 39CF07 screw mandrel attach to?

It is designed for use with Grainger items 39CE85, 39CE87, 39CE88, 39CE91, 39CE92 and 39CE93; thread the mandrel into the driver until fully seated.

When should I replace the alloy-steel mandrel due to wear?

Replace it when the threads show visible deformation, the shank bends, or it no longer engages the punch driver securely.

More in Electrician Tools

Similar items

Same shelf, same checkout — eight coins and a 30-minute rate lock.