Hydraulic Hole Punch Die Set 8x8mm Square Hole for CH70 Electric Punching Machine in 40Cr Steel Black Finish for Durable Metalworking and Precise Punching

8x8mm Square Hole Die Set for CH70 Hydraulic Punch
✔️ 40Cr steel upper 53mm, lower 20mm dies; square hole set

Designed for precise 8x8mm square holes, this hydraulic hole punch die pair fits CH70 electric hydraulic punches and similar machines. Built for durability in metalworking shops, it’s ideal for electricians, fabricators, and construction pros who need reliable hole punching in steel, aluminum, and sheet materials.

Feature	Metric	Inch
Upper hole dia	8x8 mm square	0.315 x 0.315 in
Upper die height	53 mm	2.09 in
Lower die height	20 mm	0.79 in
Lower die diameter	40 mm	1.57 in

This hydraulic hole punch die set is designed for reliable, repeatable holes in metalworking projects. It’s a practical choice for electrical installers, steel fabricators, and construction crews needing accurate square holes without guesswork. The set includes both the upper and lower dies in a durable black finish for long-lasting service in rough shop environments.

✅ Hole shape: square 8x8 mm opening
✅ Material: 40Cr steel upper and lower dies
✅ Die heights: upper 53 mm, lower 20 mm
✅ Compatibility: CH70 electric hydraulic punching machines
✅ Applications: angle steel, angle iron, sheet metal, aluminum

💡 What is a punch die set used for in metalworking? A handy tool for creating precise holes in metalwork across fabrication projects. - precise hole punching for steel, aluminum, and sheet metal - compatibility with CH70 hydraulic punch systems and similar machines - durable 40Cr steel dies ensure repeatable accuracy