What may happen if excessive pressure is applied while drilling?

When excessive pressure is applied while drilling, it can cause the drill bit to bend and the motor to overheat. This occurs because the additional force creates more friction between the drill bit and the material being drilled. The increased friction generates heat, potentially leading to overheating of the motor, which can impair its function or lead to damage. Additionally, bending the drill bit compromises its structural integrity and effectiveness, making it less efficient and potentially causing it to break.

While it is true that applying pressure might also cause the drill bit to dull more quickly and could lead to splintering of the material, the immediate and most significant effects of excessive pressure are the bending of the drill bit and overheating of the motor. The impact on drilling speed is typically the opposite of what might be expected; excessive pressure usually slows down the process due to the issues mentioned.