17pcs Electric Hammer Drill Bit Set Chisel Plastic Box Shank Impact Rotary Concrete Masonry Grooving New

Electric hammer drill set 17 piece set.Material: YG8C alloy, 40Cr steel.Equipment: electric hammer impact drill.Features: chrome steel drill body U-shaped groove, fast chip removal.Uses: Dedicated to shovel walls, and suitable for drilling of ordinary stones, concrete, brick walls, etc.Specifications:- Drill Bits Diameter(Metric): 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 10mm, 12mm, 14mm, 16mm (approx. 3/16", 1/4", 5/16", 3/8", 1/2", 9/16", 5/8")- Drill Bits Length: 4 5/16"(110mm), 6 5/16"(160mm), 8 1/4"(210mm), 10 1/4"(260mm)- Point Chisel: 9/16" x 9 13/16"(14x250mm)- Flat Chisel:3/4" x 9 13/16" x 9/16"(20x250x14mm); 1 9/16" x 9 13/16" x 9/16"(40x250x14mm)- U-groove Chisel: 9/16" x 9 13/16"(14x250mmHEAT-TREATED BIT MANUFACTURING: Provides more durable bits

• Electric hammer drill set 17 piece set.
• Material: YG8C alloy, 40Cr steel.
• Equipment: electric hammer impact drill.
• Features: chrome steel drill body U-shaped groove, fast chip removal.
• Uses: Dedicated to shovel walls, and suitable for drilling of ordinary stones, concrete, brick walls, etc.
• Built to last, with a new tapered design, it absorbs the torque peaks of impact drivers to avoid breakage