A pilot drill and a countersink are used in the JK Super Drive 4 mm Type A HSS Centre Drill Bit. In metalworking applications, the 4 mm Type A HSS Centre Drill Bit gets used to make holes in the centre of a piece of stock so that it gets rotated between centres on a lathe. In Type A HSS Centre Drill Bit, the pilot drill makes a small hole in the stock, and the countersink extends it, leaving a small space at the bottom that protects the lathe’s centres from damage when the stock gets spun on it. The HSS Centre Drill Bit pilot diameter size is 4 mm, and the body diameter is 10 mm. The overall length of the Drill Bit is 59 mm. In addition, the Centre Drill Bit has high wear resistance and gets used in a variety of machining applications.
Product Specifications:
Brand: JK Super Drive
Country of Origin: India
Material: High-Speed Steel
Pilot Diameter: 4 mm
Body Diameter: 10 mm
Overall Length: 59 mm
Product: Twist Drill Bit
Type: Tapered Shank
Key Features:
Maximum Performance
Wear Resistance
Extra Hardness
Extra Strength
General Purpose Drill
Corrosive Protection
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