Drill Bit Format TRZPIEN 7369-40-16-60 – straight shank, 40 mm length, 16 mm diameter

Format TRZPIEN 7369-40-16-60 is a straight-shank twist drill with a 16 mm cutting diameter and an overall length of 40 mm. The cylindrical shank is intended for use in hand-held drills and drill presses with chucks that accept 16 mm bits. The geometry and dimensions make this tool suitable for standard metalworking drilling operations and general-purpose holemaking where a straight shank is required.

Advantages

The straight (cylindrical) shank provides secure clamping in chucks that do not accept tapered shanks, improving concentricity in many drilling setups. The 16 mm diameter offers a balance between hole size and rigidity, reducing deflection during penetration of metal and other materials. A compact 40 mm length gives good control and stability in handheld and machine work, while keeping the flute length adequate for chip evacuation in typical through- and shallow-hole drilling.

Suitable for

• Drilling holes in metal sheets, plates and structural parts
• Use with hand drills and drill presses that accept 16 mm straight-shank bits
• General-purpose workshop and maintenance drilling tasks

Key specifications

• Shank type: straight (cylindrical)
• Cutting diameter: 16 mm
• Overall/working length: 40 mm
• Intended materials: metal and general engineering materials

How to use

Install the drill bit into a compatible chuck and ensure it is clamped securely and centered to avoid runout. Select an appropriate cutting speed and feed rate for the material being drilled, and use cutting fluid when drilling metal to improve tool life and chip evacuation. Start drilling with light pressure to establish the hole, then apply steady feed until the desired depth is reached. Retract periodically if chip buildup occurs, and clear chips from the flutes between passes when drilling deeper holes.

Usage recommendations

For best results when drilling steel and other metals, use a suitable cutting lubricant and moderate speeds. Confirm that the drill press or hand drill’s chuck can securely hold a 16 mm straight shank. Replace the bit when wear or chipping reduces cutting performance to maintain hole accuracy and surface finish.