RUKO HGB-I DIN 352 HSS 60° M4 x 0,70 mm ručný závitník pre ľavý závit

Hand tap for cutting metric ISO left-hand threads with a 60° flank angle. Made from high-speed steel (HSS) for durability in general purpose threading of unalloyed and low-alloyed steels.

Advantages

Straight flute geometry provides reliable chip evacuation in through holes and blind holes. Square drive shank ensures secure holding in tap wrenches. Uncoated surface allows resharpening for extended tool life.

Suitable for

• Threading M4 x 0.70 mm left-hand threads
• Unalloyed and low-alloyed steels
• Through holes and blind holes

Key specifications

• Thread standard: DIN 352
• Thread type: Metric ISO thread
• Nominal diameter: M4
• Thread pitch: 0.70 mm
• Thread direction: Left-hand
• Material: High-speed steel (HSS)
• Flank angle: 60°
• Tolerance class: ISO 2 (6H)
• Cutting edge geometry: Straight flute
• Shank type: Square drive
• Shank diameter: 4.5 mm
• Square drive size: 3.4 mm
• Overall length: 45 mm
• Thread length: 13 mm
• Surface treatment: Uncoated
• Tap type: Single tap (finishing tap)

Recommendations

Use with a suitable tap wrench and cutting fluid for best results. For blind holes, ensure adequate chip evacuation.