Drill bit Proline 9.5 mm model 77895K, length 125 mm, 1 pc

Proline drill bit 9.5 mm model 77895K, length 125 mm, single piece, is a metalworking drill designed for precise hole-making in a range of ferrous and non-ferrous metals. The drill features a 135° point angle with chamfering adjustment and is manufactured entirely by grinding to ensure concentricity and consistent cutting geometry. A titanium nitride (TiN) coating increases wear resistance and improves hole finish. Supplied as one piece in a blister pack, this drill bit is compatible with handheld drills and drill presses suitable for general metal drilling tasks.

Advantages

The 135° point angle with chamfering adjustment provides quicker penetration and reduces the need for center punching in many applications, saving preparation time. Full grinding manufacturing delivers improved balance and a sharper cutting edge compared with forged or rolled alternatives. The titanium nitride coating extends tool life, reduces friction and heat build-up, and contributes to cleaner hole edges and longer interval between resharpening. Its 125 mm overall length allows drilling through thicker materials or use with depth-critical setups.

Suitable for

• Drilling holes in mild steel, stainless steel, aluminium and other common metals
• Use with handheld electric drills and corded/cordless drill machines
• Application on drill presses for repetitive or precision hole-making
• Maintenance and repair workshops where durable, coated metal drill bits are required

Key specifications

• Diameter: 9.5 mm
• Overall length: 125 mm
• Point angle: 135° with chamfering adjustment
• Manufacture method: full grinding
• Coating: titanium nitride (TiN)
• Packaging: single piece in blister pack

How to use

Secure the drill bit in a compatible chuck and ensure it is centered and tightened to avoid runout. Select an appropriate cutting speed and feed for the material being drilled; reduce speed for harder metals and increase for softer alloys. Use cutting fluid or lubricant when drilling steel or stainless steel to reduce heat and prolong tool life. Start drilling with light pressure to establish a clean entry and then apply steady feed until the hole is complete. After use, clean off chips and cutting fluid and store the bit in its blister pack or a protective holder.

Usage recommendations

For best results when drilling metal, use appropriate coolant, moderate speed, and steady feed. Inspect the TiN coating periodically; resharpen by a qualified service if edges dull. Avoid excessive axial force and overheating to preserve geometry and coating.