4.9mm

HSS-R Jobber Drill Bit An economic HSS drill used for drilling all non-alloy materials. The 135° split point prevents the bit from drifting and enables faster penetration.

HSS-G Stub Drill Bit M2 Manufactured from a high grade M2 tool steel. This durable engineering quality drill will give a consistent rapid performance into all non-alloy materials.

HSS-G Jobber Drill Bit M2 Manufactured from a high grade M2 tool steel. This durable engineering quality drill will give a consistent rapid performance into all non-alloy materials. The 135° split point prevents the bit from drifting and enables faster penetration.