Combined Center Drill Bit Set 7 Pieces HSS 60 Degree Countersink Lathe Mill Tooling 1.0 1.5 2.0 2.5 3.0 4.0 5.0mm for Positioning and Chamfering of Wood Metal Alloys
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🔩【Accurate】A 60-Degree Angle center drill is very useful in drilling accurate center holes, 60-degree countersink holes or starter holes for bigger drill bits in metal-working
🔩【Multiple Sizes】Center drill bit is made of HSS high speed steel, with extremely sharp blade. Including 7 Pieces of Plain Center Drill Bits Set range in size 1.0 1.5 2.0 2.5 3.0 4.0 5.0 to meet different needs
🔩【Widely Application】work with lathe machines and most electronic drills to drill holes in Steel, Iron, Alum, Carbon Steel, Brass and other tough material ranging from 170HB up to 200HB
🔩【Spiral Flute】Spiral groove helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. The precision ground surface is corrosion resistance to achieve better using effects and prolong the wor
🔩【Function】Used for precise positioning prefabricated in hole processing and guide the twist drill for hole machining to reduce errors.
<strong>Specification:</strong><br /> Name: Center Drill Bit Set<br /> Material: High Speed Steel ( HSS )<br /> Size: 1.0 1.5 2.0 2.5 3.0 4.0 5.0 (mm)<br /> Quantity: 7 Pieces<br /> <br /> <strong>How to use center drill bits?</strong><br /> 1. Fix the work piece deep in the Lathe machine to prevent wobbling when rotate<br /> 2. Get rid of acid surface before drilling and use oil or proper lubricant to protect the bits<br /> 3. A good rule to follow is to go 2/3 deep on the tapered section<br /> 4. Stop immediately if the drilling sound is abnormal and fix any problem before resuming<br /> 5. Clean the center drill bits before and after drilling, and apply oil to store it properly.<br /> 6. stored in a solid storage case. Number 1 and Number 4 are the two most common sizes.
🔩【Multiple Sizes】Center drill bit is made of HSS high speed steel, with extremely sharp blade. Including 7 Pieces of Plain Center Drill Bits Set range in size 1.0 1.5 2.0 2.5 3.0 4.0 5.0 to meet different needs
🔩【Widely Application】work with lathe machines and most electronic drills to drill holes in Steel, Iron, Alum, Carbon Steel, Brass and other tough material ranging from 170HB up to 200HB
🔩【Spiral Flute】Spiral groove helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process. The precision ground surface is corrosion resistance to achieve better using effects and prolong the wor
🔩【Function】Used for precise positioning prefabricated in hole processing and guide the twist drill for hole machining to reduce errors.
<strong>Specification:</strong><br /> Name: Center Drill Bit Set<br /> Material: High Speed Steel ( HSS )<br /> Size: 1.0 1.5 2.0 2.5 3.0 4.0 5.0 (mm)<br /> Quantity: 7 Pieces<br /> <br /> <strong>How to use center drill bits?</strong><br /> 1. Fix the work piece deep in the Lathe machine to prevent wobbling when rotate<br /> 2. Get rid of acid surface before drilling and use oil or proper lubricant to protect the bits<br /> 3. A good rule to follow is to go 2/3 deep on the tapered section<br /> 4. Stop immediately if the drilling sound is abnormal and fix any problem before resuming<br /> 5. Clean the center drill bits before and after drilling, and apply oil to store it properly.<br /> 6. stored in a solid storage case. Number 1 and Number 4 are the two most common sizes.
