Gardner Bender 3.5-in Knockout Die

Gardner Bender 3.5-in Knockout Die Features:

• Constructed from black oxide coated, hardened and tempered chrome-moly steel.
• When used with GB 4-point punches the slug falls free from the die without the need for tapping or prying.
• For 10-gauge mild steel and 12-gauge stainless steel.
• Punches hole designed for 3.5 inch pipe or conduit.
• Actual hole diameter 4.043 inches.
• Dimensions: 4.63-in (L) x 5.63-in (W) x 4.5-in (H).