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________________ based lubricants do not work well on diamond drill bits.

________________ based lubricants do not work well on diamond drill bits. Correct Answer Oil

Water or coolant must always be used to cool and lubricate the tip. The lubrication reduces heat, prolonging drill bit life and helps to avoid heat fractures in the material. Water is most often used as a lubricant, since it works very well and has no cost.

Related Questions

Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. A bag contains some number of Diamond of 4 different colors (Red, Pink, blue and yellow). What is the total number of Diamond in the bag? I. If 5 Pink Diamond from the bag are replaced by Yellow Diamond, Then the ratio of probabilities of picking 2 yellow Diamond at a time to picking 3 Blue Diamond at a time becomes (1/116). II. The different between probabilities of picking 2 Red Diamonds at a time and probability of picking 2 Blue Diamonds at a time is (23/330). III. If a Diamond is picked from the bag, then there is 40% chance that it is a red Diamond. Probability of picking 2 Red Diamond from the bag is (26/165).
Which of the following are percussion drills? (i) Shot drill (ii) Diamond drill (iii) Wagon drill (iv) Churn drill
Which of the following are percussion drills?
(i) Shot drill
(ii) Diamond drill
(iii) Wagon drill
(iv) Churn drill
The price of Diamond is directly proportional to the square root of the weight of the diamond. If the cost of 169 grams of diamond is Rs. 6500. Then find the total cost when that diamond breaks into 2 parts having weights 144 grams and 25 grams.
The cost of diamond varies directly as the square of its weight. A diamond broke into four pieces with their weights in the ratio of 1 ∶ 2 ∶ 3 ∶ 4. If the loss in total value of the diamond was Rs. 70000, what was the price of the original diamond? 
Given below are two quantities named 1 and 2. Based on the given information, you have to determine the relationship between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. Quantity 1: P and Q can do a work in 6 days and Q and R can do a work in 60/7 days and P and R can do a work in 20/3 days. If Q and R work for first 2 days and left the work. Find the total time taken by P to complete the remaining work. Quantity 2: A and B can do a work in 8/3 days, B and C can do the same work in 3 days and A and C can do the same work in 24/5 days. In what time C alone can complete the work?
________________ are Steel bits which are screwed to the ends of drill rods and they can be attached to or removed from the drill steel.
In Bhitari village a well has to be dug. Rajesh, Rakesh and Ramesh can dig the well in 36 days, 54 days and 72 days respectively. All three started digging the well together but due to some reason, Rajesh left the work after 13 days of starting the work and Rakesh left the work 4 days before the completion of the work. Find the time taken in which the well has been dug.
Two diamond mining machines each working 12 hours per day for 8 days handles 9 tons on diamond with an efficiency of 90%. While 3 other diamond mining machines at an efficiency of 80% set to handle 12 tons of coal in 6 days. How many hours per day each should work?
Assume that a 12-bit Hamming codeword consisting of 8-bit data and 4 check bits is d8d7d6d5c8d4d3d2c4d1c2c1, where the data bits and the check bits are given in the following tables: Data bits d8 d7 d6 d5 d4 d3 d2 d1 1 1 0 x 0 1 0 1   c8 c4 c2 c1 Y 0 1 0 Which one of the following choices gives the correct values of x and y?